Timeline for Spreader beam with knee braces - angle of mating of knee brace top to beam
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 16, 2022 at 1:24 | history | bounty ended | g491 | ||
| Oct 12, 2022 at 21:17 | comment | added | g491 | Sorry if this is a silly question, but is there a reason why carriage bolt instead of hex bolt? Thanks | |
| Oct 12, 2022 at 13:48 | comment | added | gbronner | Two is probably better than one (unless you split the wood). I tend to prefer carriage bolts to lag screws in this application, because over time, the flexing tends to compress the wood fibers and make the screw hole bigger. 11 degrees is better than the picture, but it depends on how accurately you can mate the surfaces -- worst case you basically just have a lag-screw acting as a pin with significant shear forces on it. | |
| Oct 12, 2022 at 6:16 | comment | added | g491 | What do you think about option A if the angle is 11 degrees (about half as much as the drawing shows), and there are two 3/4 lag screws per knee brace joining it to the spreader beam (one is fairly long)? Trying to avoid rework if possible but want to be safe. Another variation would be to also add a stainless joiner plate on the right side of the diagram to help handle / minimize flex. Thanks | |
| Oct 11, 2022 at 17:08 | history | answered | gbronner | CC BY-SA 4.0 |