- Joined
- May 15, 2020
- Messages
- 4,154
- Points
- 601
- Age
- 70
- City
- Atlanta
- State - Country
- GA - USA
- Other
- Manufacturers factory tour, maybe big dealership tour
- Vehicle Year
- 1997 1987
- Engine
- 4.0 V6
- Transmission
- Manual
- Total Lift
- 97 stock, 3” on 87
- Total Drop
- N/A
- Tire Size
- 235/75-15
- My credo
- Never put off ‘til tomorrow what you can put off indefinitely
More details. What do you think about making the double door a triple, with one side hinged together. It won’t come into the space anymore than the existing double. It’s not on the blueprint, but if you do this, the double will put a lot of stress on the hinges. I can show you how to mount a swivel and caster on the far end of the double on a spring connection, so it takes the weight off the hinges but will still easily roll across the floor.
if you call around salvage yards and door companies, I am positive you can find a scrap metal door, and one piece of the casing whether it’s the top or sides. The door doesn’t have to be the same width, but whatever you get will set the length of the header. Then just cut the door casing on top, and weld in a piece of the extra casing to get the right length. Then you
don’t have to worry about roll ups, garage doors, leaking barn doors, etc.
You’ll have to build a solid temporary wall no more than 20 or 24 inches inside the existing wall to temporally hold the roof. I highly advise you do this wall work before you modify the joists. If you modify the joists, and then weaken the wall even temporarily, well, just look at a video of Mount Saint Helens.
You want to make the header and paint it on the ground. It’s going to be pretty heavy to put it up, but two or three guys can do it. The header has to extend past the door casing over at least two rows of blocks. If you set the header on only the first block, the tendency is going to be that block will want to crack off towards the door. If you set it across two blocks, the force will go downward in a pyramid, and it will last forever. If any of those blocks are loose, simply reset them before you do the header.
It sounds crazy, but put a triple layer of tinfoil under the header wherever it touches the block, and on the ends. When you’re working with it, if you tear a hole, simply put a 6 x 6 double patch on top of it. This is to prevent moisture migration and bug migration into the wood. (BTW, if you put a double layer of tinfoil underneath your hat, this will all make more sense)
The reason I suggest a triple door, is because I would go nine or 10 feet out, you can cut on either side of the door or split it. It’s not going to affect the structure at all, as long as you follow the concept of extending the temporary wall, and the header, and the joist straps, etc. all at least two joists past what you’ll be working on. The wall is a box of blocks, you can make a vertical cut anywhere you want, and it won’t hurt. You could even do two double doors (four Doors wide) but if you do that, I’d have to check the header dimensions.
The header should be 3 2x8s glued & screwed together, BUTTT, to get the 8 inch width, add a half inch piece of plywood in between two of the 2xs. Use 8 foot lengths of plywood so there’s only one vertical seam. Similarly, put a plywood plate on the bottom to make it 8 inches high, use the 8 foot plywood, but put the seam offset to the vertical seam on the plywood. Use a penetrating oil based stain to prime the wood, and then paint it with rust oleum or with another alkyd Based oil base paint. Don’t paint between the 2xs when you glue them, just paint the outside. Double stain and double paint the ends, so it dries in the pores.
put glue on the top of the header before you let the roof back on top of it, maybe a screw every foot or two. If you have to, cut some skinny wedges/shims to raise the roof edge up above the header to get the glue in, and then pull the shims out
Then, do your joist modifications. Once the joist modifications are done, on top of each end of the new horizontals, glue and screw a double one by three strap along the length. That strap has to extend at least two joists past the work. I would screw & glue one down, and Bow it/bend it to swoop down to attach to the original trusses. Then glue and screw the second strap on top of it, offsetting joints
then you can use the two by fours from the temporary wall to make your angle braces along the Ridgeline. I have a drawn like a “v,”. But you want to double it to create”X”s.
if you want to pull an engine or such at only one point, Instead of the horizontal one X3 straps, use 2X4 doubles vertically, always offsetting scenes, always screw and glue. At each end, you’ll have to angle overlapping 2xs down to at least two joists. Whether you use the 1X3, or 2x4, The structural purpose is to keep the trusses from leaning over or warping. So when you extend the ends, it has to be a glued and screwed overlap that will work with the entire peace in tention. The strap is for warping and bending and separation.
If you want to put a chain fall on a trolley length wise or sideways, get the I-beam, and weld a 6” x 2” vertical plate on top, and then put that plate between the two by fours, and bolt it in the top quarter of the 2 x 4. If you want it lengthwise, just do the same thing, but bolt the plates through the new horizontals. whether you use the double 2x, or you use the I-beam, it should also extend a couple of joists past your modifications. Obviously it would have to be horizontal, so where it extends to the next two joists, just put a vertical 2x column underneath it from the horizontal to under that is glued and screwed, and you can stabilize it with a plywood overlapping plate on top and bottom.
and I put in a lot of bracing specs, but basically anywhere one thing joins to another thing, if there’s going to be a force in two or three directions, just make a plywood plate, or use a short 2 x 2, and overlap the gap/stick the 2 x 2 in the corner, glued and screwed, to stabilize it.
let me know any questions!
if you call around salvage yards and door companies, I am positive you can find a scrap metal door, and one piece of the casing whether it’s the top or sides. The door doesn’t have to be the same width, but whatever you get will set the length of the header. Then just cut the door casing on top, and weld in a piece of the extra casing to get the right length. Then you
don’t have to worry about roll ups, garage doors, leaking barn doors, etc.
You’ll have to build a solid temporary wall no more than 20 or 24 inches inside the existing wall to temporally hold the roof. I highly advise you do this wall work before you modify the joists. If you modify the joists, and then weaken the wall even temporarily, well, just look at a video of Mount Saint Helens.
You want to make the header and paint it on the ground. It’s going to be pretty heavy to put it up, but two or three guys can do it. The header has to extend past the door casing over at least two rows of blocks. If you set the header on only the first block, the tendency is going to be that block will want to crack off towards the door. If you set it across two blocks, the force will go downward in a pyramid, and it will last forever. If any of those blocks are loose, simply reset them before you do the header.
It sounds crazy, but put a triple layer of tinfoil under the header wherever it touches the block, and on the ends. When you’re working with it, if you tear a hole, simply put a 6 x 6 double patch on top of it. This is to prevent moisture migration and bug migration into the wood. (BTW, if you put a double layer of tinfoil underneath your hat, this will all make more sense)
The reason I suggest a triple door, is because I would go nine or 10 feet out, you can cut on either side of the door or split it. It’s not going to affect the structure at all, as long as you follow the concept of extending the temporary wall, and the header, and the joist straps, etc. all at least two joists past what you’ll be working on. The wall is a box of blocks, you can make a vertical cut anywhere you want, and it won’t hurt. You could even do two double doors (four Doors wide) but if you do that, I’d have to check the header dimensions.
The header should be 3 2x8s glued & screwed together, BUTTT, to get the 8 inch width, add a half inch piece of plywood in between two of the 2xs. Use 8 foot lengths of plywood so there’s only one vertical seam. Similarly, put a plywood plate on the bottom to make it 8 inches high, use the 8 foot plywood, but put the seam offset to the vertical seam on the plywood. Use a penetrating oil based stain to prime the wood, and then paint it with rust oleum or with another alkyd Based oil base paint. Don’t paint between the 2xs when you glue them, just paint the outside. Double stain and double paint the ends, so it dries in the pores.
put glue on the top of the header before you let the roof back on top of it, maybe a screw every foot or two. If you have to, cut some skinny wedges/shims to raise the roof edge up above the header to get the glue in, and then pull the shims out
Then, do your joist modifications. Once the joist modifications are done, on top of each end of the new horizontals, glue and screw a double one by three strap along the length. That strap has to extend at least two joists past the work. I would screw & glue one down, and Bow it/bend it to swoop down to attach to the original trusses. Then glue and screw the second strap on top of it, offsetting joints
then you can use the two by fours from the temporary wall to make your angle braces along the Ridgeline. I have a drawn like a “v,”. But you want to double it to create”X”s.
if you want to pull an engine or such at only one point, Instead of the horizontal one X3 straps, use 2X4 doubles vertically, always offsetting scenes, always screw and glue. At each end, you’ll have to angle overlapping 2xs down to at least two joists. Whether you use the 1X3, or 2x4, The structural purpose is to keep the trusses from leaning over or warping. So when you extend the ends, it has to be a glued and screwed overlap that will work with the entire peace in tention. The strap is for warping and bending and separation.
If you want to put a chain fall on a trolley length wise or sideways, get the I-beam, and weld a 6” x 2” vertical plate on top, and then put that plate between the two by fours, and bolt it in the top quarter of the 2 x 4. If you want it lengthwise, just do the same thing, but bolt the plates through the new horizontals. whether you use the double 2x, or you use the I-beam, it should also extend a couple of joists past your modifications. Obviously it would have to be horizontal, so where it extends to the next two joists, just put a vertical 2x column underneath it from the horizontal to under that is glued and screwed, and you can stabilize it with a plywood overlapping plate on top and bottom.
and I put in a lot of bracing specs, but basically anywhere one thing joins to another thing, if there’s going to be a force in two or three directions, just make a plywood plate, or use a short 2 x 2, and overlap the gap/stick the 2 x 2 in the corner, glued and screwed, to stabilize it.
let me know any questions!