• Day 5 - Finish

    Pete Hoffswell03/28/2020 at 18:21 0 comments

    Ok, so we were not happy with the straps.  A more solid frame would make us feel better about all this lumber up in the air.  Swapping out the straps for 2x6x7 boards worked well.  Things are tight!

    One final thing - Crash Pads.  Grandma runs an upholstery business and has a bunch of foam.  We might be able to make our own.  No climbing until the pads are in place!

    We will need about a 6 x 8 landing zone.  Hopefully 2 3x4 pads maybe 2 deep?  

  • Day 4 Assembly

    Pete Hoffswell03/28/2020 at 17:53 0 comments

    The sun came out, so we went to town today.  

    1. Frame up the kick board
    2. Install T-Nuts
    3. Install sheets to frame
    4. Drag into position
    5. Install hinges
    6. Lift into position

    The treated wood is pretty wet and does not drill cleanly.  We used a counter-sink to try to clean the holes up, but didn't help much.  Still, it came out alright. Alex used "Pluto", a large size ball peen hammer that belonged to my grandfather.  I think it was a little too heavy, as some of our nuts didn't drive in straight.

    No biggie.  We can come back and fix them later.

    Now is a very good time to be sure that your frame is straight.  Measure cross corner to corner in both directions to be sure that you are square before screwing down your boards.  Remember that you identified which alignment was which, so you don't end up with some wonky hole pattern.   Your work to be sure that your joists don't interfere with your t-nuts can be seen when you flip the wall over.

    Now the moment of truth.  We have to move this beast.  We've been worried about exactly how heavy it will be once we get things together.  Sure enough - IT'S HEAVY.  Alex and I managed to slide it into position and prop it up to attach the wall to the kicker with 5 hinges.

    Ok, we've added the eyebolts for the bottom straps, and the side lean-to boards.  Ready for the big lift!  Liz and Maggie joined us for the final lift.  OOF!  Yes, we have a wall.  We discovered a couple problems here.  Our original calculation on the side supports was wrong, and we had to move them on the fly.  Second, we're not so sure about the straps.  Between the weight and the fact that they will be outdoors in the elements, we're not totally comfortable with them.  We'll think about that.

    An adjustment to the sidewalls, and things are better.

  • Day 3 - Fabrication and Assembly

    Pete Hoffswell03/25/2020 at 21:05 0 comments

    Nice day here today.  With good weather and the fact that our first shipment of holds came in a bit early, time to get back at it!

    Alex built out the kicker board today, seeing as the shipment had enough t-nuts.  We used a countersink to clean up the burrs on the holes, and hammered in the t-nuts.  Then just build the kicker board!  The kicker board sits at the bottom of the wall.  it's made with half a sheet of plywood, giving a 24x8 kicker board.  The hole layout is the same as the rest - 7 7/8" (20cm) hole spacing.

    We're waiting on the rest of the T-nuts to come in before we can proceed with the main wall build.  

    We're somewhat concerned about the quality of the plywood.  It is a little splintery.  We're contemplating some type of sealing paint to protect against splinters and weather.

  • Day 2 - Fabrication and Assembly

    Pete Hoffswell03/24/2020 at 21:33 0 comments


    With wood, saws, chalklines and screws, it's time to get to work.  Here's today's activity.

    1. Rip one 4x8 to make two 2x8.  first is for kicker board, and second is for top.
    2. frame up wall
    3. Stack layout and drill wall holes

    To drill the holes, we first lined up the 2 and 1/2 sheets stacked perfectly, and screwed them together.  We used a chalk line to lay out the hole grid as per the Moonboard plan with imperial panel template.  Take your time here, as it can be a bit fiddly - remember to mark the lower-left corner of each panel so you can maintain the orientation as per the design.  The Moonboard has a quirky feature that between sheet 1 and 2 the hole spacing is 22cm instead of 20.  They call it a feature.  Ha.

      We used a cheap drill guide from Harbor Freight that seemed to make holes go better, but not sure it was worth the $19 we paid for it..  It's sort of a piece of junk, but may have been better than nothing.  Be sure to use a 7/16" drill to drill the holes.  

    As it turns out, we decided to use the same hole pattern for our kickerboard, so we should have drilled first and then cut the sheet in half.

    While framing, we could lay out our sheets to be sure that the joists were not going to interfere with holes.  For our build, we needed to shift one or two joists slightly to clear the 20cm hole grid.  This is an important step.  You won't be happy if your holes are covered up!

    Be sure your frame is square by measuring opposite corners to match length, or use the 3-4-5 method.  See Climber Dad's video as to how he used a board to lock the square into place.

    This thing is going to be HEAVY.  With 2x10 treated and 10 feet, it's going to be a beast.  Hopefully the lean-to method will still work on such a large wall.  We'll see.

  • Day 1 - Materials acquisition

    Pete Hoffswell03/24/2020 at 21:32 0 comments

    Went to the local hardware store to buy lumber and hardware.  Very busy today, as Michigan just went into pandemic lockdown.  I think all the folks that were just "furloughed" decided that if they were stuck at home, they might as well do a home project.

    Picked up the lumber and hardware in our minivan.  Minivans are designed to be able to hold a 4x8 sheet of plywood if the seats are out, so no worries.  The big-box hardware store has everything you need for this project except holds.  Alex ordered a hold kit online as well as T-nuts, as they are cheaper in bulk that way.

  • Day 0 - Design

    Pete Hoffswell03/24/2020 at 21:32 0 comments

    Our plan is to build a lean-to style systems wall in the back yard.  We would like it to be free standing, allowing us to adjust the angle as well as move it around as needed.  

    Similar to this wall, but self supported and 8 feet wide.  

    Our design is based on Climber Dad's wall and the Moonboard, but extended to a height of 10 feet on the main wall.  By using 3 sheets of plywood, we plan on a 24" kickboard then adding the rest of the third sheet to the main wall.


    Worked on details and materials list.  Since the main wall is 10 feet, we went with 2x8x10 pressure treated joists for the main stringers.  Detailed parts in the hardware section.