Hello everyone,
We have a steel terrace structure on our raised ground floor. There is a 10cm (4 inch) height difference between the steel beams and the top edge of the structure. We would like to install WPC decking here.
Assuming the decking boards are about 2cm (0.8 inch) thick, approximately 8cm (3 inch) of height needs to be "filled" on the substructure above the steel beams.
- What kind of substructure would you recommend for this purpose? So far, I haven’t come across anything with a thickness of 8cm (3 inch).
- What would be the ideal way to fasten this substructure to the steel beams? Using self-drilling screws into the steel beams?
Regards,
N
We have a steel terrace structure on our raised ground floor. There is a 10cm (4 inch) height difference between the steel beams and the top edge of the structure. We would like to install WPC decking here.
Assuming the decking boards are about 2cm (0.8 inch) thick, approximately 8cm (3 inch) of height needs to be "filled" on the substructure above the steel beams.
- What kind of substructure would you recommend for this purpose? So far, I haven’t come across anything with a thickness of 8cm (3 inch).
- What would be the ideal way to fasten this substructure to the steel beams? Using self-drilling screws into the steel beams?
Regards,
N
S
Simon-18929 Apr 2021 12:09Hello Nanopixel,
I don’t see this as an unsolvable problem. My suggestion is to have your metalworker make three unequal-angle brackets, something like 150x75x8mm (6x3x0.3 inches), and screw them into the door openings. Leave a 50mm (2 inch) gap on each side between the bracket and the window reveal, then lay a WPC board on top of the bracket. This way, the boards in the reveals will run in the same direction as the rest of the balcony.
The new bracket just needs to be set deeper according to the thickness of the WPC boards. This keeps the galvanized frame visible from above and avoids any issues with your sealing at the bottom. Drill 3–4 holes per bracket into your flat steel edge, cold galvanize afterward (no other option now), screw the brackets on, and you’re good to go.
Minimal effort for solving your problem.
I don’t see this as an unsolvable problem. My suggestion is to have your metalworker make three unequal-angle brackets, something like 150x75x8mm (6x3x0.3 inches), and screw them into the door openings. Leave a 50mm (2 inch) gap on each side between the bracket and the window reveal, then lay a WPC board on top of the bracket. This way, the boards in the reveals will run in the same direction as the rest of the balcony.
The new bracket just needs to be set deeper according to the thickness of the WPC boards. This keeps the galvanized frame visible from above and avoids any issues with your sealing at the bottom. Drill 3–4 holes per bracket into your flat steel edge, cold galvanize afterward (no other option now), screw the brackets on, and you’re good to go.
Minimal effort for solving your problem.