Table B16. Employment Size Category, Floorspace for Non-Mall Buildings, 2003
	Total Floorspace (million square feet)
	All Buildings*	Number of Workers
		Fewer than 5 Workers	5 to 9 Workers	10 to 19 Workers	20 to 49 Workers	50 to 99 Workers	100 to 249 Workers	250 or More Workers
All Buildings* ...............................	64,783	15,492	6,166	7,803	10,989	7,934	6,871	9,528
Building Floorspace
(Square Feet)
1,001 to 5,000 ................................	6,789	4,659	1,264	689	155	Q	Q	N
5,001 to 10,000 ..............................	6,585	3,323	1,373	1,109	689	Q	Q	N
10,001 to 25,000 ............................	11,535	4,006	2,075	2,456	2,113	692	Q	N
25,001 to 50,000 ............................	8,668	1,222	836	1,327	2,920	1,648	667	Q
50,001 to 100,000 ..........................	9,057	704	291	1,157	2,865	2,151	1,518	371
100,001 to 200,000 ........................	9,064	804	Q	Q	1,558	2,014	2,455	1,452
200,001 to 500,000 ........................	7,176	Q	Q	Q	533	1,077	1,706	2,571
Over 500,000 .................................	5,908	Q	N	N	Q	Q	Q	5,087
Principal Building Activity
Education .......................................	9,874	612	378	740	2,565	2,928	1,995	655
Food Sales .....................................	1,255	484	Q	Q	Q	Q	Q	N
Food Service .................................	1,654	336	413	421	367	Q	Q	N
Health Care ....................................	3,163	Q	254	Q	335	111	683	1,539
Inpatient .......................................	1,905	N	N	Q	Q	Q	379	1,464
Outpatient ....................................	1,258	Q	254	Q	312	Q	304	Q
Lodging ..........................................	5,096	802	437	1,023	1,049	703	562	Q
Retail (Other Than Mall)..................	4,317	1,235	828	755	440	572	333	Q
Office .............................................	12,208	767	964	848	1,755	1,291	1,663	4,920
Public Assembly ............................	3,939	1,381	443	588	836	Q	Q	Q
Public Order and Safety ................	1,090	145	Q	Q	Q	Q	Q	Q
Religious Worship ..........................	3,754	2,117	582	646	246	Q	Q	Q
Service ..........................................	4,050	1,612	513	747	597	Q	Q	Q
Warehouse and Storage ...............	10,078	3,433	807	1,545	1,843	1,025	585	Q
Other ..............................................	1,738	159	Q	Q	Q	Q	Q	293
Vacant ...........................................	2,567	2,359	Q	Q	Q	N	N	N
Year Constructed
Before 1920 ...................................	3,769	1,262	524	481	713	400	Q	Q
1920 to 1945 ..................................	6,871	2,211	608	1,053	909	668	518	903
1946 to 1959 ..................................	7,045	1,897	634	896	1,536	712	604	767
1960 to 1969 ..................................	8,101	1,967	642	825	1,408	1,201	1,145	913
1970 to 1979 ..................................	10,772	2,456	1,016	1,331	1,886	1,092	1,230	1,760
1980 to 1989 ..................................	10,332	1,625	1,035	889	1,274	1,432	1,403	2,674
1990 to 1999 ..................................	12,360	2,644	1,206	1,565	2,289	1,557	1,338	1,760
2000 to 2003 ..................................	5,533	1,431	500	763	973	871	471	524
Census Region
Northeast .......................................	12,905	2,376	1,085	1,872	2,314	1,598	1,331	2,329
Midwest .........................................	17,080	4,958	1,463	2,081	2,856	2,311	1,609	1,800
South .............................................	23,489	5,670	2,595	2,741	3,883	2,654	2,534	3,413
West ..............................................	11,310	2,489	1,023	1,109	1,935	1,370	1,397	1,986
Climate Zone: 30-Year Average
Under 2,000 CDD and --
More than 7,000 HDD ...................	10,622	2,699	1,035	1,374	2,014	1,673	996	832
5,500-7,000 HDD .........................	17,335	4,857	1,529	2,155	2,709	2,166	1,561	2,357
4,000-5,499 HDD .........................	11,504	1,755	1,013	1,359	2,132	1,316	1,434	2,495
Fewer than 4,000 HDD ................	15,739	4,076	1,646	1,599	2,498	1,812	2,109	1,999
2,000 CDD or More and --
Fewer than 4,000 HDD ................	9,584	2,106	944	1,317	1,635	966	771	1,845
Number of Floors
One ................................................	25,981	9,898	3,480	3,538	4,535	2,649	1,250	630
Two ...............................................	16,270	3,706	1,627	2,277	3,664	2,254	1,774	968
Three .............................................	7,501	1,282	637	942	1,325	1,321	1,341	653
Four to Nine ...................................	10,085	605	404	1,040	1,249	1,470	2,134	3,182
Ten or More ...................................	4,947	N	Q	Q	Q	Q	372	4,095
Elevators and Escalators
(more than one may apply)
Any Elevators ................................	24,617	1,200	621	1,836	3,055	4,168	5,060	8,677
Number of Elevators
One ..............................................	8,221	649	499	1,114	1,660	2,072	1,782	445
Two to Five ..................................	10,129	Q	Q	Q	1,285	1,983	2,798	2,709
Six or More ..................................	6,268	Q	N	N	Q	Q	480	5,523
Any Escalators ..............................	2,350	Q	Q	N	Q	Q	Q	1,973
Weekly Operating Hours
Fewer than 40 ...............................	6,863	5,562	484	284	243	Q	Q	Q
40 to 48 ..........................................	11,622	2,700	1,610	1,668	2,458	1,358	1,050	777
49 to 60 ..........................................	15,723	3,057	1,831	2,177	2,633	2,314	1,478	2,233
61 to 84 ..........................................	10,334	1,475	1,043	1,516	2,179	1,439	1,315	1,366
85 to 167 ........................................	7,092	823	508	974	1,599	1,288	1,045	855
Open Continuously ........................	13,149	1,874	690	1,184	1,876	1,346	1,918	4,260
Ownership and Occupancy
Nongovernment Owned ................	49,421	13,316	5,386	6,790	7,940	4,556	4,139	7,293
Owner Occupied .........................	23,591	5,546	2,802	3,668	3,499	2,138	2,262	3,677
Nonowner Occupied ...................	23,914	5,854	2,585	3,123	4,441	2,417	1,877	3,617
Unoccupied ..................................	1,916	1,916	N	N	N	N	N	N
Government Owned ......................	15,363	2,176	780	1,013	3,049	3,378	2,732	2,235
Federal .........................................	1,956	Q	Q	Q	Q	Q	Q	761
State ............................................	3,808	456	Q	277	916	803	681	493
Local ............................................	9,599	1,128	495	678	2,022	2,340	1,956	981
Vacancy Status
Completely Vacant .........................	2,161	2,161	N	N	N	N	N	N
Mostly Vacant ................................	406	Q	Q	Q	Q	N	N	N
Partially Vacant ..............................	12,382	1,926	663	910	1,415	1,726	1,572	4,171
Not At All Vacant ...........................	49,834	11,207	5,413	6,841	9,509	6,208	5,299	5,357
Number of Establishments
One ................................................	45,144	11,824	4,924	6,115	7,967	5,487	4,368	4,458
2 to 5 ..............................................	10,960	1,399	1,183	1,584	2,369	1,487	1,451	1,486
6 to 10 ............................................	1,958	Q	Q	Q	476	375	340	565
11 to 20 ..........................................	1,951	Q	Q	N	Q	511	420	853
More than 20 ..................................	2,609	Q	N	Q	Q	Q	293	2,165
Currently Unoccupied ....................	2,161	2,161	N	N	N	N	N	N
Energy Sources (more than
one may apply)
Electricity .......................................	63,307	14,061	6,147	7,803	10,962	7,934	6,871	9,528
Natural Gas ....................................	43,468	7,023	4,084	5,317	8,212	6,156	5,127	7,549
Fuel Oil ...........................................	15,157	1,459	625	1,024	1,602	2,131	2,149	6,168
District Heat ...................................	5,443	853	Q	Q	667	474	1,050	2,191
District Chilled Water ......................	2,853	Q	Q	Q	327	505	583	1,219
Propane .........................................	7,076	2,092	564	907	907	956	661	989
Other ..............................................	1,401	307	Q	Q	319	Q	Q	205
Energy End Uses (more than
one may apply)
Buildings with Space Heating ........	60,028	12,182	5,822	7,410	10,822	7,650	6,766	9,376
Buildings with Cooling ....................	56,940	9,591	5,726	7,304	10,566	7,428	6,806	9,519
Buildings with Water Heating .........	56,478	9,525	5,393	7,182	10,480	7,688	6,815	9,395
Buildings with Cooking ...................	22,237	1,886	1,172	2,010	3,829	3,699	3,515	6,126
Buildings with Manufacturing ........	3,138	288	Q	367	762	Q	382	628
Buildings with Electricity
Generation ....................................	12,821	248	Q	439	1,347	2,103	2,357	6,113
Heating Equipment (more
than one may apply)
Heat Pumps ....................................	8,814	1,196	647	932	1,460	1,398	1,513	1,668
Packaged Heat Pumps .................	5,442	636	443	520	749	938	869	1,286
Split-System Heat Pumps .............	2,581	530	Q	364	443	Q	Q	587
Individual Room Heat Pumps ........	2,691	Q	Q	Q	504	643	581	545
Furnaces .......................................	19,615	5,347	3,043	3,057	3,814	1,899	1,290	1,165
Individual Space Heaters ...............	12,545	2,782	938	1,542	2,364	1,628	1,300	1,991
District Heat ...................................	5,166	Q	Q	Q	653	460	972	2,063
Boilers ............................................	20,423	1,986	1,140	1,884	3,588	3,556	3,401	4,869
Packaged Heating Units .................	18,021	2,269	1,571	2,209	3,526	2,835	2,736	2,874
Other ..............................................	3,262	544	Q	394	799	372	Q	808
Cooling Equipment (more
than one may apply)
Residential-Type Central
Air Conditioners ............................	11,035	2,630	1,461	2,035	2,129	1,097	776	906
Heat Pumps ....................................	9,041	1,303	696	862	1,485	1,339	1,427	1,929
Packaged Heat Pumps .................	5,426	703	492	489	764	887	828	1,264
Split-System Heat Pumps .............	2,606	570	Q	325	455	Q	Q	600
Individual Room Heat Pumps ........	2,940	Q	Q	Q	518	613	531	861
Individual Air Conditioners .............	12,558	2,342	1,144	1,608	2,680	1,710	1,328	1,746
District Chilled Water ......................	2,853	Q	Q	Q	327	505	583	1,219
Central Chillers ...............................	11,636	Q	Q	294	1,243	1,736	2,436	5,590
Packaged Air Conditioning
Units ..............................................	29,969	3,964	3,025	4,059	5,941	4,517	3,939	4,524
Swamp Coolers .............................	1,561	349	Q	Q	410	Q	Q	Q
Other ..............................................	1,232	Q	Q	Q	Q	Q	Q	250
Main Equipment Replaced Since
1990 (more than one may apply)
Heating ...........................................	16,403	3,368	1,920	2,360	3,283	2,172	1,836	1,463
Cooling ...........................................	20,995	3,688	2,054	2,753	4,139	2,518	2,487	3,357
Office Equipment (more
than one may apply)
Computers .....................................	55,627	7,716	5,515	7,456	10,870	7,828	6,714	9,528
With Flat Screen Monitors ............	26,417	1,269	1,537	2,418	4,134	4,283	4,356	8,420
Dedicated Servers .........................	36,338	1,248	2,266	4,233	7,252	6,453	5,853	9,033
Laser Printers ................................	33,012	5,130	3,660	4,409	6,785	4,689	3,717	4,623
Inkjet Printers .................................	32,210	2,375	2,610	4,002	6,375	4,824	4,484	7,540
FAX Machines ...............................	52,373	5,814	5,103	6,958	10,372	7,798	6,825	9,503
Photocopiers ..................................	46,257	3,884	3,761	5,560	9,770	7,382	6,620	9,279
Number of Computers
None ..............................................	9,156	7,777	651	347	Q	Q	Q	N
1 to 4 ..............................................	12,395	6,537	2,654	1,910	991	Q	Q	N
5 to 9 ..............................................	7,179	690	2,164	2,062	1,583	514	Q	Q
10 to 19 ..........................................	6,610	242	445	2,336	2,436	888	Q	Q
20 to 49 ..........................................	7,414	Q	Q	607	3,697	1,832	755	Q
50 to 99 ..........................................	5,376	Q	Q	Q	1,352	1,869	1,261	Q
100 to 249 ......................................	6,690	Q	Q	Q	682	1,846	2,856	1,164
250 or More ...................................	9,963	Q	Q	Q	Q	751	1,367	7,626
Number of Dedicated Servers
None ..............................................	28,445	14,244	3,900	3,570	3,737	1,481	1,018	495
1 to 4 ..............................................	24,116	1,238	2,263	4,108	6,522	4,846	3,438	1,700
5 to 9 ..............................................	3,864	Q	Q	Q	472	874	1,010	1,376
10 to 19 ..........................................	3,027	Q	N	N	Q	306	879	1,678
20 to 49 ..........................................	2,583	N	N	N	Q	Q	420	1,749
50 or More .....................................	2,748	N	N	N	Q	Q	Q	2,530
Number of Photocopiers
None ..............................................	18,526	11,608	2,405	2,243	1,218	552	Q	Q
One ................................................	15,475	3,378	2,948	3,434	3,699	1,369	503	Q
2 to 4 ..............................................	15,082	488	786	1,736	5,046	4,260	2,055	710
5 to 9 ..............................................	5,515	Q	Q	Q	913	1,258	1,987	932
10 or More .....................................	10,185	N	Q	N	Q	496	2,075	7,492
Energy-Related Space Functions
(more than one may apply)
Commercial Food Preparation ........	22,223	1,872	1,172	2,010	3,829	3,699	3,515	6,126
Activities with Large
Amounts of Hot Water ..................	19,482	1,842	1,062	2,031	3,540	2,931	3,190	4,886
Separate Computer Area ...............	26,873	532	645	2,213	4,533	5,114	5,119	8,716
HVAC Conservation Features
(more than one may apply)
Variable Air-Volume System .........	19,597	1,043	626	1,349	2,953	3,058	3,547	7,021
Economizer Cycle ..........................	21,108	969	962	996	3,277	3,680	4,151	7,073
HVAC Maintenance .......................	51,163	7,480	4,189	6,214	9,677	7,478	6,693	9,431
Energy Management and
Control System (EMCS) ................	15,630	507	302	517	2,250	3,050	3,262	5,742
Window and Interior Lighting
Features (more than one
may apply)
Multipaned Windows .....................	38,910	6,336	3,351	4,917	7,333	5,550	4,574	6,850
Tinted Window Glass ....................	29,887	4,604	2,150	2,788	4,692	3,975	4,226	7,452
Reflective Window Glass ..............	8,544	986	229	449	1,213	1,473	1,093	3,100
External Overhangs
or Awnings ...................................	17,242	3,002	1,845	2,924	2,769	2,282	2,055	2,365
Skylights or Atriums .......................	12,546	834	665	1,580	1,868	2,023	1,990	3,587
Daylighting Sensors .......................	2,868	211	Q	Q	375	432	428	1,183
Specular Reflectors .......................	26,118	2,554	1,623	2,483	4,410	4,039	3,980	7,028
Electronic Ballasts .........................	46,882	7,653	3,942	5,454	7,894	6,744	5,977	9,218
Energy Management and
Control System (EMCS)
For Lighting ...................................	4,781	Q	Q	Q	603	700	735	2,538
Equipment Usage Reduced
When Building Not In Full Use
(more than one may apply)a
Heating ...........................................	42,722	8,305	4,310	5,290	7,271	5,757	4,648	7,139
Cooling ...........................................	43,205	7,318	4,490	5,546	7,520	5,893	4,765	7,672
Lighting ..........................................	46,987	10,224	5,264	6,412	8,751	6,393	4,854	5,089
Office Equipment ...........................	19,397	4,417	2,678	3,104	3,847	2,324	1,923	1,104
See "Guide to the Tables" or "Glossary" for further explanations of the terms used in this table. Both c