“INTERIOR VERTICAL SHORE, STEP BY STEP”

September 1, 1993
ByFire Engineering Staff

INTERIOR VERTICAL SHORE, STEP BY STEP

1. Using your shoring size-up, determine where you will be erecting the shoring. After initial temporary shoring has been installed, clear the area of debris, down to the floor. A clearance three to four feet wide is necessary.

2. Lay the sole plate. Do not nail the sole plate to the floor at this time, as it may have to be shifted slightly to keep the entire shore plumb. 3. Measure the height of the posts. For easier measuring, lay the header on top of the sole plate. Check to make sure the two plates are directly under the point to be shored; this will make the measurements more accurate.4. Place the bottom of the tape measure on top of the header where the posts are to be installed. Keep the tape as plumb as possible for accurate measurement.5. Slide the tape measure up to the bottom of the structural element to be shored, and measure along the length of the interior shore in at least three places. This will help you determine if there is a bow in the elements that are to be stabilized. If there is a bow, take the smallest measurement and deduct the width of the wedges you will be using; this is the height of your posts.6.Anchor the header to the area that is to be shored. Nail it in at the lowest point and shim the rest of the header, making it as level as possible. Pneumatic nailers work well to anchor the header, as they tend not to split the wood and create almost no vibration problems.7.Install the posts under each structural element to be supported. This will transfer the weight directly through the shore to sound-bearing members that can support the additional loading.8.Install a set of wedges married together under each post. The wedges enable you to tighten the shore to transfer the loads properly and give you some leeway should the posts have been cut too long or too short, or if some shifting has occurred.9. These posts are erected properly, and the wedges have been tightened securely.10. Erect the diagonal braces on each side of the shore. The braces should span the entire length of the shore and should be anchored to each post and the sole plate and header. This will help stabilize the entire shore; being on both sides, they can take pressure from either direction.

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