“USP STRUCTURAL CONNECTORS” STAIR ANGLE Size: 10″ Finish: triple zinc Manufactured of 18 gauge galvanized steel. Simplifies stair construction and eliminate the need to calculate and notch stair stringers. Stronger and safer than wood blocking, and the angle and fasteners are hidden from view. Use the sca9 for single 2×10 stair treads and sca10 for double 2 by 6 stai r treads. Use 8 each 1/4″ lag bolts, bolts not included.
Stair angles simplify stair construction. Safer and stronger than wood blocking. Use all specified fasteners. Use the SCA9-TZ for single 2×10 stair treads. Use the SCA10-TZ for double 2 x 6 stair treads. To calculate stair construction do the following: 1. Find the number of steps needed by taking the vertical drop from the deck surface to grade. Divide by 7. Round off to the nearest whole number. (Ex: Vertical drop of 39˝ divided by 7 equals 5.57˝ rounded off is 6˝). 2. Find the step rise by dividing the vertical drop by the number of steps (39˝ divided by 6 = 6.5˝). 3. Find the step run by measuring the depth of your treadboard (Ex: (2) 2x6s have a run of 111⁄4˝). 4. Find the stairway span by multiplying the run by the number of treads minus one (Ex: 111⁄4˝ x 5 = 561⁄4˝). Using the above calculations, mark stair angle locations on each stringer. Attach a stair angle to the inside of each stringer at the marked locations. Attach stringers to deck rim joist and railing posts. Position treadboards on angles and fasten from below. Fastener schedule: (8) 1/4″ x 1-1/2″ lag screws. Allowable download (lbs.) DF-L/SP 100%: 450. Code ref.: 2, F20, R12.
- For attachment of stair treads to stair stringer
- Heavy G185 galvanized coating for exterior applications
- Recommended for use with treated lumber
- For double 2X6 stair tread
- Comparable to TA10Z