Ellis shoring, concrete forming, ellis shore clamps, screw jacks Shoring and Bracing Specialists Since 1951.
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Ellis Shores for Mining - [Back to Main Products Page]

The ELLIS Shore is the perfect support for many types of shoring and can be used in mining applications. Use #1 Douglas Fir and two Ellis Clamps to construct an Ellis Shore. Laminated Veneer Lumber can also be used to obtain higher load capacities. Nail the clamps onto the lower shore member at the correct spacing with #16 double headed nails. The upper shore member will slide up through the clamps to make an adjustable Ellis Shore. The ELLIS Jack Wrench is used to tighten up the Ellis Shore against the ceiling. The upper and lower shore member will overlap in the middle. The more the overlap, the stronger the shore gets. Tighten clamps with a hammer.


BENEFITS:
Economical: Low initial cost, great time savings, and easy to use.

Adaptable: Use the Ellis Shore in many ways. Vertical shoring for ceilings, shoring for concrete slabs, diagonal bracing, for permanent or temporary supports.

Speed: Can be assembled and slid into position quickly. This is a proven speed advantage. Fewer skilled men are required.

Safety: Shores are double strong in the middle to prevent buckling. For adequate bracing, nail at any point.


Total Shore Height in Feet 4x4 Ellis Shore 6x4 Ellis Shore 6x6 Ellis Shore Minimum Clamp Spacing
8' 10,000 16,000 16,000 34"
10' 9,000 15,000 16,000 56"
12' 8,000 14,000 16,000 68"


A (2 ½ to 1) Safety Factor will apply. For Shore Heights more than 12’ consult with a structural engineer.

This load chart is based on test results using #1 Douglas Fir. The upper shore member and the lower shore member should each be 2’ less than the total shore height. For example, if the total shore height is 8’, then each shore member should be cut to 6’ long. The clamps should be spaced according to the above chart.

*NOTE* Do Not Go Under the Recommended Minimum Clamp Spacing.

This chart is based on the following values:
MOL – 1,300,000 P.S.I.
Fb – 1,450 P.S.I.
Fc – 925 P.S.I.

For greater load values, use Laminated Veneer Lumber (LVL).