3″ Composite Deck (Normal Weight Concrete – 145 pcf)

Type 3” composite cellular deck is utilized in exposed ceiling areas where a flat bottom deck is desired for aesthetic purposes under a slab and the spans exceed the capability of type 2” composite cellular deck.

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All of our deck products meet the requirements for steel deck certification specifications of Steel Deck Institute.

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Description

Type 3” composite cellular deck is utilized in exposed ceiling areas where a flat bottom deck is desired for aesthetic purposes under a slab and the spans exceed the capability of type 2” composite cellular deck.

Section Properties (Fy=40 ksi)

Gage Top/BotWeight (psf) GalvIp(In4) In(In4Sp(In3) Sn(In3)
20/203.651.4171.2960.6390.604
20/184.151.5321.5320.7230.654
18/204.151.7341.4660.8650.78
18/184.721.8911.8910.8860.826
18/165.282.022.020.9050.903
16/185.242.2462.2461.0971.01
16/166.552.4052.4051.1211.087

– Section properties calculated in accordance with AISI specifications

Acoustical Data
Absorption Coefficients

125250500100020004000NRC
.45621.1.98.78.65.85

Maximum Allowable Unshored Clear Spans
NW Concrete 145 PCF

Slab DepthGageWeight PFS1 Span2 Span3 Span
5.5”20/20589’-3”11’-1”11’-6”
5.5”20/18589’-11” 11’-7”11’-11”
5.5”18/205811’-0”12’-8”13’-1”
5.5”18/185911’-1”12’-11”13’-4”
5.5”18/1659 11’-2”13’-6”14’-0”
5.5”16/186012’-5”14’-3”14’-8”
5.5”16/166012’-6”14’-9”15’-3”
6.0”20/20648’-10”10’-9”11’-1”
6.0”20/18649’-6”11’-2”11’-6”
6.0”18/206410’-6”12’-2”12’-7”
6.0”18/186510’-712’-6"12’-10”
6.0”18/166510’-9”13’-0”13’-6”
6.0”16/186611’-11”13’-9”14’-2”
6.0”16/166612’-0”14’-3”14’-8”
6.5”20/20708’-6”10’-4”10’-9”
6.5”20/18709’-1”10’-9”11’-2”
6.5”18/207010’-1”11’-9”12’-2”
6.5”18/187110’-2”12’-1”12’-6”
6.5”18/167110’-4”12’-7”13’-0”
6.5”16/187111’-6”13’-4”13’-9”
6.5”16/167211’-7”13’-9”14’-3”
7.0”20/20768’-2” 10’-0”10’-4”
7.0”20/18768’-10”10’-5”10’-10”
7.0”18/20769’-9”11’-5”11’-9”
7.0”18/18779’-1011’-8” 12’-1”
7.0”18/167710’-0”12’-2”12’-7”
7.0”16/187711’-1”12’-11”13’-4”
7.0”16/167811’-2”13’-4”13’-9”
7.5”20/20827’-11”9’-9”10’-1”
7.5”20/18828’-6”10’-2”10’-6”
7.5”18/20829’-5”11’-1”11’-5”
7.5”18/18839’-7”11’-4”11’-9”
7.5”18/16839’-8” 11’-10”12’-3”
7.5”16/188310’-9”12’-6”12’-11”
7.5”16/16840’-10”12’-11”13’-4”

For superimposed live load tables, see
3” Composite Floor Deck – page 12-13

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