364 Science Classrooms (Elementary and Secondary School)

These laboratory classroom buildings include areas for lectures, demonstrations, audiovisual presentations, laboratory work and study. Typically, there is also an area designated for storage of materials and equipment. The laboratories have both AC and DC variable voltage and plumbing in the work areas.

The costs do not include lab equipment.

Availability of Elevators by Area for this occupancy: No

Marshall Valuation Service sections: 18 and 48 (Laboratory).

Typical Lives:

					Class
Quality	A	B	C	D	H	M	P	S	W
Low	45	45	40	35	--	--	35	35	--
Average	45	45	40	35	--	--	35	35	--
Good	50	50	45	40	--	--	40	40	--
Excellent	50	50	45	40	--	--	40	40	--

Quality Selection Guide:

Class A (Fireproof Structural Steel Frame): and Class B (Reinforced Concrete Frame):

Quality	Exterior Walls	Interior Finish	Mechanicals	HVAC
Average	Brick, concrete or metal panels, formed concrete	Plaster or drywall, acoustic tile, workstations, good demonstration areas	Adequate lighting & plumbing, some extras	Warm and cool air (zoned)
Good	Face brick, stone, concrete or metal panels, solar glass	Plaster or drywall, acoustic tile, good workstations, lecture, support rooms	Good fluorescent fixtures, good lab plumbing, extra features	Hot and chilled water (zoned)

Class C (Masonry Bearing Walls):

Quality	Exterior Walls	Interior Finish	Mechanicals	HVAC
Average	Steel frame or bearing walls, brick, block or concrete, some trim	Plaster or drywall, acoustic tile, VCT, adequate work, demonstration areas	Adequate lighting & plumbing	Package A.C.
Good	Steel columns, web or bar joists, ornamental block or face brick	Plaster or drywall, acoustic tile, good workstations, lecture area	Good fluorescent fixtures, good lab plumbing, extra features	Warm and cool air (zoned)
Excellent	Steel frame, face brick or block, tile, ornamental	Plaster or drywall, acoustic tile, good workstations, lecture, support rooms	Good lighting & plumbing, piped gases, air and pure water	Warm and cool air (zoned)

Class D (Wood or Steel Framed Exterior Walls):

Quality	Exterior Walls	Interior Finish	Mechanicals	HVAC
Average	Wood frame or pipe columns, good stucco or siding with some trim	Plaster or drywall, acoustic tile, VCT, adequate work, demonstration areas	Adequate lighting & plumbing	Package A.C.
Good	Steel or glulam frame and joists, brick veneer, glass, best stucco	Plaster or drywall, acoustic tile, good workstations, lecture area	Good fluorescent fixtures, good lab plumbing, extra features	Warm and cool air (zoned)

Class P (Pole Frame):

Quality	Exterior Walls	Interior Finish	Mechanicals	HVAC
Average	Pole frame, insulated metal panels, some ornamentation	Drywall, acoustic tile, vinyl composition, adequate work, demonstration areas	Adequate lighting & plumbing	Package A.C.

Class S (Metal Frame and Walls):

Quality	Exterior Walls	Interior Finish	Mechanicals	HVAC
Average	Pre-engineered, sandwich panels, some trim	Drywall, acoustic tile, vinyl composition, adequate work, demonstration areas	Adequate lighting & plumbing	Package A.C.
Good	Pre-engineered, good sandwich panels, some brick or stone	Drywall, acoustic tile, good workstations, lecture area	Good fluorescent fixtures, good lab plumbing, extra features	Warm and cool air (zoned)