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Hi all,
I'm currently working on a project to mount a hang board onto a pull-up bar. A bit of back ground, a hang board is a tool that helps with the grip/finger strength and usually used to train for bouldering. It is usually drilled into walls as shown in the photo. However, as I am currently renting, I am unable to drill holes into the walls.
The below link is the board that I have. Dimensions are 610mm by 157mm.
As a result, I currently have two options that I am considering for this project.
Option 1 (https://www.youtube.com/watch?v=6p0BoRIY6BU)
In this video, it uses ropes to hold the hang board under the pull-up bar. It's fairly straight forward to prepare this. I think for the rope, Grunt 8mm x 170m White Super Silver Rope is a good choice (probably need around 4m -5m) as it will be able to support my weight (70-80kg).
I also plan to buy Norton Bear 50mm x 4.5m Black cloth tape to prevent damages on the door frame, and plywood to screw my hang board into.
For this method, I think the main advantage is that it will put less stress onto the door ledge (relative to the 2nd option) as the weight will be directly under the pull up bar.
The disadvantage I can think of is that i'll have to install this equipment everytime I put up the pull up bar.
Option 2 (https://www.youtube.com/watch?v=KtMDa13-zig)
The concept for this option is similar to the previous option but rather than using ropes, this option attaches the plywood into the handles of the pullup bar.
For this, i'll be using a galvanized 15mm flange and 15mm x 100mm nipple pipe and connecting this with the ply wood and pull-up bar.
The benefit I can think of this method is that I don't have to install both but only have to hook the pullup bar and it's ready for use.
The main concern about this is since the downward force of my body weight is applied somewhat further away from the center, I'm worried that it might be putting a lot of pressure on the plywood or the door ledge.
My questions are,
1. What kind of plywood is required? I think structural plywood should be sufficient but there's a lot of options (marine, form, grade AA). Not entirely sure what the differences are and what to get. I have to consider a relatively light option and at the same time strong material.
2. How much ply do I need? The screws that came with the hangboard is 3.5cm to 4cm. So I think I should get something around 4cm thick to cover the screws and 60cm long and 17cm tall.
3. How heavy are ply woods? I can't really find the specs in Bunnings website or anywhere. I've heard every m^3 is around 600kg. Not sure if this is reliable data.
4. Which option is the better/safer option? Is there anything else that I will need to consider for the two options.
Thank you in advance.
-Gavin
Thank you for your reply.
One more question, how much plywood do you think is suitable?
I was thinking 160mm(height) x 600mm (length) x 42mm (thick). The board is around 157mm x 610mm and the screws are 40mm, as per photo attached
Does Bunnings cut to a certain length if requested? I do not own a saw and prefer not to buy it for this one time use.
Thank you
You won't, unfortunately, find plywood 40mm thick, but you could get the team to cut a Project Panel 1220 x 610 x 18mm AA Grade Mixed Hardwood Marine Plywood into 157mm strips and laminate them together with PVA glue.
Mitchell
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