SitePRO 27-BBMOUNT Batter Board Clamp

Mount Your Grade Laser Directly to Batter Boards — No Tripod Required

The SitePRO 27-BBMOUNT Batterboard Mount is purpose-built for contractors who need a fast, rock-solid laser setup on foundation layouts, framing decks, and rough grading sites where tripods are impractical or simply in the way. By clamping directly to standard batter boards or rough-cut dimensional lumber, this mount puts your grade laser exactly where the work is — at the reference line — and keeps it there through a full shift of vibration, foot traffic, and changing temperatures.

Overview and Jobsite Applications

Foundation crews, framing contractors, and civil grading teams all share the same frustration: tripods tip, walk, and steal floor space in crowded excavations. The 27-BBMOUNT solves that by turning any batter board stake or 2x lumber into a stable laser platform. The reinforced U-bolt clamp system bites into rough-sawn and pressure-treated lumber without crushing fibers or creeping under load, and the industry-standard 5/8-11 threaded stud accepts virtually every rotating and self-leveling grade laser on the market. Setup takes under a minute, and the quick-release handle lets you swap instruments between stations without tools.

Key Specifications

• Model: SitePRO 27-BBMOUNT
• Mounting Thread: 5/8-11 UNC — compatible with Spectra, Topcon, Sokkia, Leica, and most grade laser brands
• Clamp Range: Accommodates lumber from 1.5 in. to 3.5 in. wide (nominal 2x stock)
• Body Material: Die-cast aluminum — lightweight, corrosion-resistant, contractor-grade
• Clamp Hardware: Reinforced steel U-bolt with knurled locking knob
• Quick-Release: Single-lever quick-release for tool-free instrument removal
• Weight: Approximately 1.2 lbs
• Finish: Anodized for UV and weather resistance

Key Features

• No-Tripod Setup: Clamps directly to batterboards, ledger boards, or any rough-cut 2x lumber on site
• Universal 5/8-11 Stud: Works with all major rotating and self-leveling grade lasers right out of the box
• Reinforced U-Bolt Clamp: Steel hardware grips rough and pressure-treated lumber without slipping or loosening during the workday
• Quick-Release Handle: Move your laser from station to station in seconds with no tools required
• Cast Aluminum Body: Shrugs off job-site abuse — drops, mud, and weather — without deforming or cracking
• Anodized Finish: Resists corrosion on wet or coastal job sites
• Compact Profile: Low-bulk design keeps the mount out of the way in tight excavations and crawl spaces

Job Applications

Foundation Layout: Clamp the 27-BBMOUNT to your batter board stakes around the excavation perimeter and set your rotating laser at a consistent reference elevation. Pull string lines from the mount for dead-accurate corner and offset layout without relocating a tripod every time the excavator swings.

Slab and Footer Grading: Attach your self-leveling grade laser to the 27-BBMOUNT on a ledger or form board, then shoot grade across the pour area. The fixed clamp eliminates the drift you can get from a tripod on freshly disturbed soil.

Floor Framing and Deck Layout: Mount directly to rim joists or temporary ledger boards during deck and floor system installation. Keeps the laser at working height without crowding the deck surface with tripod legs.

Utility and Drainage Grading: Use the 27-BBMOUNT on trench shoring boards or grade stakes for consistent pipe and drainage slope references in tight trenches where a tripod cannot stand level.

Compatible Accessories

• SitePRO Rotating Grade Lasers — compatible with the 27-BBMOUNT via 5/8-11 thread
• Spectra Precision Grade Lasers — mount directly with no adapter
• Topcon Grade Lasers — standard 5/8-11 fit confirmed
• Laser Grade Rods and Receivers — pair with any mounted laser for long-range grade shots
• SitePRO Tripod Mounts and Accessories — round out your layout kit

Related Guides

• How to Set Up a Rotating Laser on Batter Boards for Foundation Layout
• Choosing the Right Laser Mount for Your Job Site
• Grade Laser Buying Guide for Contractors
• Batter Board Best Practices for Accurate Building Layout

Frequently Asked Questions

What lumber sizes does the 27-BBMOUNT clamp to?

The 27-BBMOUNT is designed for nominal 2x lumber, accommodating actual widths from approximately 1.5 in. to 3.5 in. It grips standard batter board stakes, 2x4, 2x6, and similar rough-cut dimensional stock securely.

Will this mount fit my Spectra, Topcon, or Leica grade laser?

Yes. The 27-BBMOUNT uses a standard 5/8-11 UNC threaded stud, which is the industry-standard thread for rotating and self-leveling grade lasers from Spectra Precision, Topcon, Sokkia, Leica, and most other major brands. No adapter is required.

Is the clamp secure enough to hold a laser on vibrating or busy job sites?

The reinforced steel U-bolt and knurled locking knob are designed to bite into rough-sawn and pressure-treated lumber without creeping. Once tightened, the mount holds the laser stable through normal job-site vibration and foot traffic. Always double-check your lock before shooting critical grades.

Does the quick-release allow the laser to rotate or pan while mounted?

The quick-release is designed for removing and reattaching the instrument between stations quickly, not for on-mount rotation. For grade layouts requiring panning, use the instrument's own leveling and rotation controls once it is secured to the 27-BBMOUNT stud.