What Is Shoring and Reshoring?
Definition: Shoring is the temporary support system that holds up formwork and fresh concrete until the concrete can carry its own weight. Reshoring is the placement of shores snugly beneath a slab or beam after the original forms and shores have been removed, so the young concrete is not overloaded while it continues to gain strength and while construction continues above. This category covers reshoring equipment and specialty shoring that does not fit the standard frame, post shore, or modular tower categories.
On multi-story concrete projects, formwork is usually stripped and reused on the next floor before the slab below has reached full design strength. Reshores take over the support role during that window, distributing the weight of the floors being poured above down through several levels of recently cast slabs. The number of reshored levels and the spacing of reshores are determined by a shoring and reshoring analysis based on slab strength, construction loads, and pour schedule.
Beyond reshoring, this category includes specialty and project-specific shoring such as timber shoring, heavy-capacity shoring towers, raking and flying shores that brace walls and facades, needle beams for supporting structures during openings, and custom-engineered temporary supports for unique conditions. Through Scaffold Exchange, you can find vendors across the U.S. who rent, sell, and engineer shoring and reshoring systems and compare their inventory, rental rates, and availability in your area.
Types of Equipment in This Category
Shoring and reshoring needs vary widely by project. These are some of the most common equipment types that fall outside standard shoring categories.
Reshores
Adjustable shores placed snugly beneath stripped slabs and beams to support them through curing and distribute construction loads from the floors above.
Timber Shoring
Dimensional lumber posts, beams, and wedges used for small jobs, irregular conditions, or locations where manufactured shoring will not fit.
Raking & Flying Shores
Inclined raking shores and horizontal flying shores that brace walls, facades, and adjacent buildings against lateral movement during demolition or excavation.
High-Capacity Shoring Towers
Heavy-load shoring towers for bridge construction, transfer girders, and other loads beyond the capacity of standard frames and modular systems.
Needle Beams & Custom Supports
Needle beams, steel support frames, and custom-engineered shoring for creating openings, underpinning, and supporting structures during alterations.
Common Applications & Job Site Uses
Shoring and reshoring equipment is used across new construction, renovation, demolition, and infrastructure projects throughout the United States wherever structures need temporary support.
Reshoring stripped slabs in multi-story concrete buildings
Supporting slabs under heavy construction loads
Facade retention during interior demolition
Bracing adjacent buildings during excavation and demolition
Creating new openings in load-bearing walls
Bridge falsework and heavy infrastructure pours
Emergency stabilization of damaged structures
Irregular conditions where standard shoring will not fit
How This Category Compares to Other Shoring Equipment
Reshoring and specialty shoring work alongside the standard shoring categories. Here is how they compare and which jobs each suits best.
Adjustable single-post shores
- Telescoping steel or aluminum posts
- Fast to set, adjust, and remove individually
- Commonly used as reshores
- Best for typical floor heights and reshoring
Temporary support for existing structures
- Transfers loads around removed members
- Used in renovation and alterations
- Engineered for each condition
- Best for structural modifications
Reshoring and specialty shoring
- Reshores for slabs during curing
- Timber, raking, and flying shores
- High-capacity and custom-engineered supports
- Best for unique or project-specific needs
Support for elevated slabs
- Carries slab formwork and fresh concrete
- Remains until the slab reaches strength
- Followed by reshoring
- Best for multi-story elevated slab pours
Purpose-built shoring towers
- Interchangeable posts, ledgers, and jacks
- Adapts to varying heights and layouts
- Towers can be flown or rolled as units
- Best for complex or tall slab shoring
Find Shoring & Reshoring Vendors Near You
Use the Scaffold Exchange map to search by location, filter by equipment type, and connect directly with local suppliers who rent, sell, and engineer shoring and reshoring systems.
OSHA Compliance & Safety Standards
Shoring and reshoring for concrete construction on U.S. job sites is governed by OSHA 29 CFR 1926 Subpart Q, Concrete and Masonry Construction. Standard 29 CFR 1926.703 requires reshoring wherever it is needed to safely support slabs and beams after stripping or under construction loads, and prohibits removing reshores until the supported concrete has attained adequate strength. Industry guidance is provided by ACI 347.2R, Guide for Shoring/Reshoring of Concrete Multistory Buildings.
- Reshoring provided where needed to support stripped slabs and beams
- No construction loads on new construction while reshoring is underway
- Reshores not removed until concrete can carry its weight and all loads
- Shoring and reshoring follow an engineered layout kept on site
- Shoring inspected before, during, and after concrete placement
- Damaged or weakened shoring reinforced or replaced immediately
1926.703
Requirements for Cast-in-Place Concrete — U.S. Construction Regulations
OSHA Interpretations & Rulings →
