DryJoist is a structural deck drainage system, meaning the deck’s surface is supported by the same system that creates a dry space in the area below. Traditionally, joists are repeated structural members used to build a supporting frame, ultimately determining the design, strength, and material selection for the deck’s surface. DryJoist has the necessary utility of traditional deck joists yet provides the freedom to build a truly custom deck surface that is both waterproof and unmatched in structural strength.
| Joist Length | 1/180 | 1/240 | 1/360 |
|---|---|---|---|
| 4 | 560.84 | 420.63 | 280.42 |
| 5 | 287.15 | 215.36 | 143.58 |
| 6 | 166.17 | 124.63 | 83.09 |
| 7 | 104.65 | 78.48 | 52.32 |
| 8 | 70.11 | 52.58 | 35.05 |
| 9 | 49.24 | 36.93 | 24.62 |
| 10 | 35.89 | 26.92 | 17.95 |
Specs
Material:
6005-T5 Series Marine Grade Aluminum
extruded for precision
extruded for precision
Length:
All DryJoist Profiles:
8'/12'/16'/20'
Anchor Clips:
6"
Weight:
1.5 lbs per linear foot
(that's approximately ½ the weight of wood)
(that's approximately ½ the weight of wood)
Finish:
Ivory color powder-coat finish, factory applied to the Face of all DryJoist profiles
Height / Depth:
2"
Notes
Span:
8’ span perpendicular to the ledger; indefinite parallel spans
Drainage:
pitch 1/8” per foot (recommended)
Allowable cantilever:
max 18”
Outdoor exposure:
meets or exceeds AAMA2603.02 suitable for long term exposure in the harshest conditions; cryogenically strong
Corrosion resistant:
will not rust or deteriorate; withstands direct ground water contact and saltwater splash
Non-toxic:
non-porous material; naturally resistant to mold, mildew, and bacteria (will not foster growth environment); does not require maintenance or harsh chemicals/sealants