Public Library | WBDG - Whole Building Design Guide (2022)

Overview

Within This Page

  • Overview
  • Building Attributes
  • Emerging Issues
  • Relevant Codes and Standards
  • Additional Resources

Public libraries can be differentiated from academic, school, and special libraries because they function to serve the needs of a diverse service population including small children, students, professionals, and the elderly. In contrast, academic libraries serve college and university faculty and students; school libraries serve elementary, middle, and high school students and faculty; and special libraries (such as Presidential Libraries) serve scholars and experts within narrowly defined fields.

Although public libraries serve the public at large, including those who are also served by other types of libraries, they are used primarily by members of the local community in which they are constructed and secondarily by members in communities in immediately outlying areas. The members of those communities are the service population of public libraries and their needs affect the design and planning of public library spaces. For example, if a community has a large population of young children, which can result from a community with a high-quality elementary school system, the public library design must address the needs of children and how they use libraries, i.e., story-telling spaces, books within easy reach for children, nap areas, etc. Whereas, a public library that serves the needs of a community with a large population of elderly people will included design criteria to meet their needs, i.e., easy access into the building, adequate lighting, large-print media, etc.

Building Attributes

A. Types of Spaces

Public Library | WBDG - Whole Building Design Guide (1)

Reference desk at Issaquah Public Library, Issaquah, WA by Bohlin Cywinski Jackson
Photo Credit: James Frederick House

There are seven broad types of public library space:

  • Collection space (including public electronic workstation space)
  • User seating space
  • Staff work space
  • Meeting space
  • Special use space
  • Non-assignable space (including mechanical space)

Careful analysis of the following will allow designers to determine the space needs for the seven general spaces listed above, which are common to public libraries:

  • Identification of the library's population of users
  • Estimation of the collections provided by the library and the space needed to accommodate those provisions to meet the future needs of its users
  • Estimation of floor space needed to accommodate seating areas
  • Estimation of floor space needed by staff
  • Estimation of floor space needed for meeting rooms
  • Estimation of miscellaneous public- and staff-use space (special use space)
  • Estimation of space needed for entry halls, mechanical rooms, bathrooms, etc. (non-assignable space).

B. Determining the Building's Attributes

The following steps can be used to determine the library's general building attributes. The steps below do not assess exterior space needs such as parking and site amenities, which vary widely depending on site selection as determined in the library program.

Step 1: Determine the Service Population

A projection of the needs of the design (service) population for 20 years is the start of the library design process. This design projection will allow the library to serve the future needs of its population of users and allows the designer to determine the space needed for the preceding categories of library spaces.

Population estimates can be gathered from local municipalities, county, or regional planning commissions, or from a state's Office of Policy and Management. Since most public libraries serve residents of outlying communities, it is important to include the effect that non-resident use will have on library space allotments.

Step 2: Determine Needs for Collection Space

Since the needs of the design population are projected over 20 years, the collection size must also respond to the 20-year projection, i.e., collection space must be projected over a 20-year period. In addition, public libraries should have a "weeding policy" whereby outdated material is omitted from collections. This will allow additional space for future expansion.

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The number of volumes of books, non-print materials (music CDs, audio books, etc.), and periodicals that are maintained by the library can change from 5 to 25 volumes per square foot depending on shelf height, aisle width, and the kind of material, whether it's magazines or encyclopedias.

  • Calculate Space Needs for Books—As a general rule of thumb, to estimate the square footage of book storage space (with aisles at least 36 inches wide) divide the total projected number of volumes by 10. The square footage needed for compact book storage is equal to the total projected collection divided by 25. For example, if the total projected collection over 20 years is 50,000 volumes, 50,000 divided by 10 equals 5,000 square feet needed to house the projected collection.

  • Calculate Space Needs for Non-print Items—To determine the square footage necessary to store non-print material, divide the total number of non-print items projected over 20 years by 10. For example, if the projected non-print items over 20 years equals 20,000, then 20,000 divided by 10 equals 2,000 square feet of space needed for non-print items over a 20–year period.

  • Calculate Space Needs for Periodicals—Use the following formula to determine space needs for periodicals. Divide the number of current periodicals that will be maintained by the library by 1.5. That number equals the space in square feet needed to house the current periodicals. Multiply the number of back issues of periodicals that will be kept in the library by 0.5. Multiply that number by the average number of years the periodical will be maintained in the library. That result is the space needed to house back issues. For example, if there are 100 current periodicals, then 100 divided by 1.5 is 67 square feet of space needed for current periodicals. If the library will house 40 back issues of each title for 5 years, then 40 divided by 0.5 multiplied by 5 years equals 100 square feet of space need for back issues of periodicals. The square footage needed for current periodicals (67) plus the square footage needed for back issues (100) equals the total square footage needed for periodicals over a 20–year period.

Public Library | WBDG - Whole Building Design Guide (2)

Public Library | WBDG - Whole Building Design Guide (3)

View enlarged plan
Plan of Burton Barr Phoenix Central Teen Library, Phoenix, AZ by Will Bruder Architects
Photo Credit: Bill Timmerman

View enlarged plan
Plan of Des Plaines Public Library, Des Plaines, IL by Lohan Associates
Photo Credit: Les Boschke

Obviously, the recommended size of a library's collections (including the number of electronic workstations needed—see Step 3), will determine how much floor space is needed for the collections. Some state library agencies or state library associations issue standards that provide guidance in determining the appropriate collection size. Also note the recommendations regarding recommended planning processes for public libraries, issued by the Public Library Association, a division of the American Library Association.

Step 3: Determine Space Needs for Electronic Workstation Space

Work/study desks and tables in the primary library space and in meeting rooms must provide connections for computers and other devices that utilize two-way communication services, such as the Internet.

  • Calculate Space Needs for Public Access Computer Stations (PACs)—PACs consist of a computer terminal (monitor and hard drive), keyboard, and access to a printer. A PAC station used from a seated position requires at least 40 square feet. A PAC station used from a standing position requires at least 20 square feet. PACs can by placed anywhere in the library. For example, a PAC that can be used by a standing person can be placed near the entry area and can function only to direct users to particular spaces in the library depending on the users' inputted needs.

  • Calculate Space Needs for Computer Workstations—As an alternative, or in addition to PACs, libraries can provide electronic workstations equipped with two-way communication system hook-ups to accommodate users with their own computer equipment. A space of 75 square feet can be used as a general average for each computer workstation.

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  • Calculate Space Needs for Microfilm or Microfiche Workstations—A general rule of thumb is 35 square feet for each microfilm or microfiche workstation.

Step 4: Determine Space Need for User Seating

Public Library | WBDG - Whole Building Design Guide (4)

The Great Reading Room at Burton Barr Phoenix Central Library, Phoenix, AZ by Will Bruder Architects
Photo Credit: Bill Timmerman

In general, public libraries should provide at least 5 seats for every 1,000 users in its service population. As a guide, public libraries that serve no more than 10,000 users should accommodate 7 to 10- seats for every 1,000 users. These guides do not include the seats needed in meeting rooms or staff areas. The number of seats can be adjusted depending on the library. For example, if the library is one that encourages long-term use, i.e., extensive collections of research materials, then the number of seats should be inflated. If the library encourages browsing, i.e., latest magazines or best sellers, the number of seats needed may be less.

  • Calculate Square Footage Needs for User Seating—The square footage needed for user seating varies depending on the type of seating, i.e., lounge chair, table seating, etc. As a general rule of thumb, for table seating use 25 square feet per seat; for study carrel seating use 30 square feet per seat; and for seating in lounge chairs use 35 square feet per seat. As a general average, designers can use 30 square feet per seat.

  • To determine total square footage necessary for user seating, subtract the number of PAC and electronic workstation seats and meeting and conference room seats (if these rooms are used only for meetings and conferences) from the projected number of total seats. That number multiplied by 30 is the projected square footage needed for user seating.

Step 5: Determine Space Needs for Staff Work Areas

Public Library | WBDG - Whole Building Design Guide (5)

Front and circulation desks at Des Plaines Public Library, Des Plaines, IL by Lohan Associates
Photo Credit: Les Boschke

Staff space should include space for computers for online access to outside resources. Staff workloads and the number of library staff at each area where library services are provided, i.e., reference desk, circulation desk, multimedia stations, are important in determining the space needed for staff. Office space for library administrators and staff-only areas (such as staff lounges or staff eating areas) is an important part of staff space.

  • Calculate Space Needs for Staff Work Areas—On average, the space needed for staff work areas is approximately 150 square feet per work area. Some work areas may be larger than others. For example, check-out areas may require more square footage than help-desk areas. As a general rule of thumb, the square footage allotment for staff work areas equals the number of projected staff areas multiplied by 150.

Step 6: Determine the Space Needs for Meeting Rooms

Many public libraries incorporate meeting space for library- and community- sponsored meetings or events. Meeting rooms also serve as staff or library patron training space. Depending on the library's function as determined in the library program, Internet connections and other two-way communication system outlets may be necessary.

  • Calculate the Space Needs for Meeting Rooms—There are two types of seating arrangements common in public library meeting rooms: theater seating and conference room seating. For theater, or lecture hall, seating arrangements, the projected square footage needed in the meeting room equals the number of seats multiplied by 10. For conference room seating, the projected square footage needed equals the number of seats multiplied by 25. The square footage needed in meeting rooms targeted for children's activities will require 10 square feet per seat. Meeting room space does not include other square footage necessary for other peripheral spaces including a kitchen area in or nearby the meeting room and storage areas for audiovisual equipment, chairs, tables, etc.

Step 7: Determine Space Needs for Special-Use Areas

The need for special-use spaces (such as a history or genealogy room, a job center, or a community information area) will vary depending on the function of the library as determined in its written program.

  • Calculate Space Needs for Special-Use Areas—Some special-use spaces and their required square footage are included in the table below.
Items In Special-Use Areas*Square Footage Required per Item
Atlas Stand35
Bulletin Board9
Display Case50
Index Table140
Map File35
Microfilm Cabinet10
Newspaper Rack25
Paperback Rack35
Photocopier50
Staff Locker4
Vertical Files10
*The items listed are for example and are an abbreviated list of items that may be included in the special-use space. Depending on the role of the library as determined in the program, the number of items and the number of special-use areas may vary.

Step 8: Determine Space Needs for Non-Assignable Areas (such as Mechanical Rooms)

Non-assignable spaces are important for the general operation of the library facility but they are not a direct part of the services offered by the library. These spaces include mechanical rooms, bathrooms, entrance halls, corridors, stairs, security rooms, and elevators. These non-assignable spaces make up 20% to 30% of gross floor area of the library.

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  • Calculate Space Needs for Non-Assignable Areas—The square footage needed for non-assignable space equals the total square footage of steps 2 through 7, divided by 4.

Emerging Issues

Public Library | WBDG - Whole Building Design Guide (6)

The Seattle Public Library features wireless communications technologies, allowing staff members to provide support to patrons without being bound to a reference desk.

Computer technology continues to affect the way libraries function and, as a result, the way they are planned and designed. As a result, the electric and wiring needs of modern-day public libraries must accommodate changing technology. Today, public libraries must be able to support wired and wireless connections to digital communications from networks within and from outside the library. Outside digital communication systems include the Internet, area networks, public telephone networks, and networks accessed through digital service providers (such as cable companies) that utilize copper wire, cable, wireless, or fiber-optic capabilities. See also WBDG Productive—Integrate Technological Tools.

The recommended wiring capability of modern public libraries is Category 5 (CAT 5) wiring optimized for 1,000BASE–T using RJ45 connectors. Exterior-mounted satellite dishes may also be a consideration in some library programs.

Circuits and electrical outlets should be plentiful so that changing technology can be supported. Dedicated circuits for computers and surge protection for electronic workstations and PACs should be incorporated into the design of library spaces.

Another emerging technology—radio frequency identification (RFID)—is coming to the library market in the form of charging and security systems that are easier to configure into patron self-service stations, allowing some libraries to radically reconsider the organization of functions at the entry. Some public libraries that have adopted RFID-based patron self-charge systems have been able to position circulation functions—traditionally in a prominent entry location—to the sides, allowing a newly-prominent information desk to become the centerpiece of the library's entry. This in turn changes the patron's experience of the entry and the character of the space.

Still other libraries-notably the recently—opened Seattle Public Library—are using wireless communications technologies to allow library staff members to roam through the stacks and reader seating, without being bound to a reference desk, the better to provide support to patrons at the point of contact.

Public Library | WBDG - Whole Building Design Guide (7)

Daylighting employed in the children's area at Des Plaines Public Library, Des Plaines, IL, by Lohan Associates
Photo Credit: Les Boschke

Sustainable design should be a part of every library program so that the building can function efficiently without wasting energy during its lifetime. Below is a checklist to ensure that public libraries incorporate sustainable design. See WBDG Sustainable Branch for more guidance on sustainable design.

  • Is the building designed and constructed in ways that preserve the natural outdoor environment and promote a healthful indoor habitat?

  • Is the building designed to avoid adversely impacting the natural state of the air, land, and water, by using resources and methods that minimize pollution and waste?

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  • Is the building designed to maximize passive and natural sources of heating, cooling, ventilation, and lighting? See WBDG Passive Solar Heating, High–Performance HVAC, Natural Ventilation, and Daylighting.

  • Are innovative strategies and technologies employed such as porous paving to conserve water, reduce effluent and run-off, thus recharging the water table?

  • Is the project planned to reduce the need for individual automobiles, use alternative fuels, and encourage public and alternate modes of transportation?

  • Is the building constructed and operated using materials, methods, and mechanical and electrical systems that ensure a healthful indoor air quality while avoiding contamination by carcinogens, volatile organic compounds, fungi, molds, bacteria, and other known toxins?

  • Are the HVAC system's outdoor air intakes located as high as possible above the ground and far enough away from the exhaust ducts to reduce the intake of ground level air pollution?

  • Are stainless-steel-strip bird guards installed over the horizontal rooftop outdoor air intakes to prevent birds from settling on the grating and polluting the shafts below?

  • Does the HVAC have an efficiency air filtration system with pre-filters and final filters at 30 % and 85% efficiency respectively?

  • Are air filters designed to be easy to access and clean and/or replace? See WBDG .

  • Has the exposed fiberglass within the HVAC system been encapsulated to eliminate amplification sites for fungal and bacterial micro-organisms?

  • Is the rate of ventilation with outdoor air at least 25 cubic feet per minute?

  • Are copy rooms and similar spaces that emit possibly toxic substances equipped with their own dedicated air exhaust systems?

  • Is particleboard that emits formaldehyde emissions prohibited in the building? See Evaluating and Selecting Green Products.

  • Is furniture constructed without particleboard that emits formaldehyde? See WBDG Evaluating and Selecting Green Products.

  • Are only solvent-free paints specified for the project? See WBDG Evaluating and Selecting Green Products.

    (Video) Shades of Green: Designing the Champaign Public Library

  • Are low-emitting, solvent-free adhesives specified for the project? See WBDG Evaluating and Selecting Green Products.

Relevant Codes and Standards

Model Building Codes that may apply include the following (check with local building departments for code requirements):

Note: Some states have their own state-written building codes. In addition, some localities have their own local codes. State and local building departments are the best resource for applicable codes.

Additional Resources

Associations

Publications

  • The Design and Evaluation of Public Library Buildings by Nolan Lushington and James M. Kusack. Hamden, CT: Library Professional Publications, 1991.
  • Determining Your Public Library's Future Size: A Needs Assessment Planning Model by Lee B. Brawner and Donald K. Beck. Chicago, IL: American Library Association, 1996.
  • Library Facility Siting and Location Handbook by Christine M. Koontz. Westport, CT: Greenwood Press, 1997.
  • Planning the Small Library Facility, 2nd ed. by Anders C. Dahlgren. Chicago, IL: American Library Association, 1996.
  • Public Library Space Needs: A Planning Outline by Anders C. Dahlgren. Wisconsin Department of Public Instruction, Public Library Development, 2009.

FAQs

What are the factors to be considered in the design of a library building? ›

Library Design: Five Things to Consider
  • Technology. Today's libraries must provide easy access to technology. ...
  • Accessibility. The library must be accessible to its demographic. ...
  • Lighting. ...
  • User-Friendliness. ...
  • Comfort.
17 Feb 2014

What is the standard size of a library? ›

Experience Formulas for Library Size and Costs
Population SizeBook Stock — Volumes per CapitaDesirable First Floor Sq. Ft. per Capita
Under 10,0003 1/2 – 5.5 – .7
10,000 – 35,0002 3/4 – 3.4 – .45
35,000 – 100,0002 1/2 – 2 3/4.25 – .3
100,000 – 200,0001 3/4 – 2.15 – .2
2 more rows

What makes a good library architecture? ›

It suggests that the most 'successful' designs are those that are the simplest – open plan with good visibility across the floorplate and excellent connectivity - allowing staff and customers greater freedom to change the form and function of the public library over time.

How is library space calculated? ›

As a general rule of thumb, for table seating use 25 square feet per seat; for study carrel seating use 30 square feet per seat; and for seating in lounge chairs use 35 square feet per seat. As a general average, designers can use 30 square feet per seat.

What is guiding principle for planning a new library building? ›

It should be independent building and provision for future expansion should be made. Suitable provision should be made for work place and staff. The building should have proper natural lighting, ventilation and control of noise. It should not have a complex architecture.

What is the importance of library building? ›

Library buildings often provide quiet areas for studying, as well as common areas for group study and collaboration, and may provide public facilities for access to their electronic resources; for instance: computers and access to the Internet.

What are the basic requirements of a library? ›

The 3 main criteria for the existence of a library are a functioning building, archives of human thought in the context of manuscripts, books, periodicals, audio visuals, microfilms, maps, etc., and possible users to use them.

How are modern libraries designed? ›

Modern library design encourages multiple uses and connections. Natural light, openness and a variety of settings are also integral to them. For your library to best serve your patrons, you will require construction documentation.

What do you understand by library building? ›

Library Building means a building physically located in the United States that, in whole or in part, is used by a Public Library and the part so used is predominantly used for the storage of, and access to, such Public Library's library books or library services.

How is the library different from other buildings? ›

Answer: Library is a public place where many books are available of different kinds and people come to study the book of their interest. On the other hand, building is a private property which is owned by a person or a group of people.

How many books should a public library have? ›

A typical 28 class would have the library of close to 600 books contained in it. When you examine teachers' classroom supplies, they should have somewhere between 20 and 40 books per student.

What rooms should a library have? ›

This outline defines six broad types of library space—collection space, reader seating space, staff work space, meeting space, special use space, and nonassignable space (including mechanical space).

How do you calculate area per person? ›

How many square feet per person standing? Six square feet per person is a good rule of thumb for a standing crowd. If you are planning a cocktail hour for 100 people who will all be standing, you will multiply 100 by 6 to determine you need a venue with 600 square feet of available and workable space for the event.

What is the meaning of modular form of library building? ›

A modular building is a prefabricated building that consists of repeated sections called modules. Modularity involves constructing sections away from the building site, then delivering them to the intended site. Installation of the prefabricated sections is completed on site.

What are the most essential factor for the Organisation of the library? ›

Human resource is the most important factor in the library work, and aiming at the practice of the employee structure, on the one hand, the library should actively strive for the support from superior department in charge and reasonably introduce talents, and on the other hand, based on the existing system, the library ...

What are the three phases of library? ›

We might clumsily call these stages: [1] fragmentary, [2] integrated supply, and [3] demand-influenced. Fragmentary. Libraries have to manage a variety of resources which are outside their control and present them to their users as best they can.

What is the purpose of public libraries? ›

“Libraries don't just provide free access to books and other cultural materials, they also offer things like companionship for older adults, de facto childcare for busy parents, language instruction for immigrants and welcoming public spaces for the poor, the homeless and young people.”

Why are public libraries important to our communities? ›

They help local people figure out the complexities of life, from navigating the health system to helping those with housing needs. This “go-to” role has influenced library programming and events, with libraries providing advice and connections to health, housing, literacy, and other areas.

Why do public libraries matter? ›

Healthy public libraries are important to democratic societies because they allow everyone, regardless of income, to make informed decisions about their government, their health, their education, and their consumption of goods.

How are modern libraries designed? ›

Modern library design encourages multiple uses and connections. Natural light, openness and a variety of settings are also integral to them. For your library to best serve your patrons, you will require construction documentation.

How do you establish a library? ›

Establishing a new library, or developing an existing collection of books and other materials into a library, involves several functions: creating the oversight or governance structure, defining the mission and purpose of the organization, securing funding, planning, developing a collection, securing or building an ...

What is effective library? ›

An effective school library enhances student learning outcomes by providing a range of programs, services and resources which support teaching and learning. It also supports and encourages students' reading experiences. These libraries will usually: Offer quality programs that support the curriculum.

What is the main purpose of a school library? ›

The materials and equipment in a library media program provide information that supports active, authentic learning, and thus ensures that young people develop the information literacy skills crucial to their success as students and as lifelong learners.

What are the needs of school library? ›

School libraries help students to get authentic information through the books written by reputed scholars who come from different parts of the world. A library plays an important role in creating a school culture, which helps every student to grow on their individual basis as well.

What are the types of spaces in a library? ›

There are seven broad types of library space:
  • Collection space.
  • Public electronic workstation space.
  • User seating space.
  • Staff work space.
  • Meeting space.
  • Special use space.
  • Non-assignable space (including mechanical space)
27 May 2019

What does a design system do? ›

Design systems provide a single source of components, patterns, and styles and unify disjointed experiences so that they are visually cohesive and appear to be part of the same ecosystem. As an added bonus, any major visual rebrands or redesigns can be managed at scale through the design system.

What rooms should a library have? ›

This outline defines six broad types of library space—collection space, reader seating space, staff work space, meeting space, special use space, and nonassignable space (including mechanical space).

What is the modern concept of library? ›

A modern library is a social organization which uses technology to offer information services. The services are offered to its heterogeneous population on a 24X7 basis as and when required.

What is the concept of library? ›

A collection or group of collections of books and/or other print or nonprint materials organized and maintained for use (reading, consultation, study, research, etc.).

What do modern libraries offer? ›

Answer: Libraries offer computer classes, enabling older adults stay engaged in a digital world. Bookmobiles and community outreach programs keep those living in remote areas or those who are homebound connected to the larger community. Public libraries also help communities cope with the unexpected.

What is a library development plan? ›

LDP aims to strengthen the ability of the library and information sector to advocate for equitable access to information and resilient, sustainable library communities. We will achieve this through the following strands: Building Strong Library Associations Programme.

How do you run a successful library? ›

Top tips for an effective library
  1. Create a whole school culture that values reading, with the library as a pivot.
  2. Have a librarian / staff member who works in the library regularly.
  3. Allocate a budget for the library so there are finances to provide a wide range of new resources.

How much does it cost to build a library? ›

Library Square Foot Cost Assuming Face Brick with Concrete Block Back-up / R/Conc. Frame
Cost Estimate (Union Labor)% of TotalCost
Total$2,613,500
Contractor Fees (GC,Overhead,Profit)25%$653,400
Architectural Fees8%$261,400
Total Building Cost$3,528,200

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