Catalog

I-Joist Span Table

I-Joist Span Table 40 Psf Ll & 15 Psf Dl , L/480 Deflection @ 16" OC • Minimum 1 3/4" Bearing on Each End • Clear Span is the Maximum Allowable Distance Between Inside Face of Supports

• Spans Are Based on Uniform Loading as Shown Above

• 23/32" Subfloor Nailed and Glued on Top

Depth 9 1/2" 9 1/2" 9 1/2" 11 7/8" 11 7/8" 11 7/8" 11 7/8" 11 7/8" 11 7/8" 11 7/8"

Series

Clear Span

APA Rating

Face Mount Hanger

Top Mount Hanger

40S / 400

16' 2" 16' 11" 17' 9" 19' 4" 20' 2" 21' 2" 21' 5" 22' 4" 24' 1" 22' 11" 24' 0" 24' 5" 25' 5" 27' 5" 26' 8" 27' 0" 28' 2"

PRI-40 PRI-50 PRI-60 PRI-40 PRI-50 PRI-60 PRI-70 PRI-80 PRI-90 PRI-50 PRI-60 PRI-70 PRI-80 PRI-90 PRI-60 PRI-70 PRI-80

IUS2.56/9.5 IUS2.37/9.5 IUS3.56/9.5 IUS2.56/11.88 IUS2.37/11.88 IUS3.56/11.88 IUS2.37/11.88 IUS3.56/11.88 IUS3.56/11.88 IUS3.56/11.88

ITS2.56/9.5 ITS2.37/9.5 ITS3.56/9.5 ITS2.56/11.88 ITS2.37/11.88 ITS3.56/11.88 ITS2.37/11.88 ITS3.56/11.88 ITS3.56/11.88 ITS3.56/11.88

RFPI40

700

40S / 400

RFPI40

700

RFPI70

80S / 800

Trimjoist J12

22' 10 1/2"

TPI Rated

RFPI90 RFPI40

14" 14" 14" 14" 14" 14" 16" 16" 16" 16" 16"

IUS2.37/14 IUS3.56/14 IUS2.37/14 IUS3.56/14 IUS3.56/14 IUS3.56/14 IUS3.56/16 IUS2.37/16 IUS3.56/16 IUS3.56/16 IUS3.56/16

ITS2.37/14 ITS3.56/14 ITS2.37/14 ITS3.56/14 ITS3.56/14 ITS3.56/14 ITS3.56/16 ITS2.37/16 ITS3.56/16 ITS3.56/16 ITS3.56/16

700

RFPI70

80s / 800

Trimjoist J14

25' 9 1/2"

TPI Rated

RFPI90

700

RFPI70

80S / 800

Trimjoist J16

27' 9 1/2"

TPI Rated

RFPI90

30' 4"

PRI-90

I-JOIST PROFILES LVL Flange (7/16" web for 90 series only)

Solid Swan Flange (3/8" web)

RFPI 40

RFPI 70

RFPI 90

IB400

IB700

IB800

2-5/16" x 1-3/8" 1.88 E Flange

2-5/16" x 1-1/2" 2.21 E Flange

3-1/2" x 1-1/2" 2.41 E Flange

2-1/2" x 1-1/2" MSR 1650

3-1/2" x 1-1/2" MSR 1650

3-1/2" x 1-1/2" MSR 2100

FIRE RESISTANT JOIST OPTIONS Depth Product

Clear Span

9 1/2" 9 1/2" 11 7/8" 11 7/8" 11 7/8"

1 1/2" LVL

16' 9" 17' 6" 20' 6" 20' 0" 21' 10" 22' 0" 24' 10"

FIRE RESISTANT ASSEMBLIES FOR I-JOISTS

IB700 Webshield

1 1/2" LVL

IB700 Webshield IB800 Webshield IB700 Webshield IB800 Webshield

14" 14"

Jackson LUMBER & MILLWORK A

1.

15

July 2026