Cajo Quad Rail Series: full assembly manual

The Cajo Quad Rail Series — aluminum T-bolt gear tracks on all 4 sides, 3" tall, built-in ruler, with mounting posts that fit existing T-slot tracks OR through-hull installs (M6 drill bit, silicone sealant, backing plate). Available in 12", 26", 32", and 44" (2-pack) lengths. 26" and 32" are ideal for captain's bridge or dashboard builds. 3-step install — partial-tighten brackets, position, fully tighten — plus a two-case mounting walkthrough (T-slot or through-hull). PDF download below.

The CAJO Quad Rail is your all-in-one mounting solution for limitless configuration. Whether you're building a captain's bridge, fishing dashboard, or streamlined handrails — the Quad Rail delivers 360° rigging potential with T-bolt gear tracks on all four sides. Each aluminum rail stands 3" tall to keep your gear elevated, secure, and ready in rough water. A built-in ruler adds quick measuring utility, and adjustable mounting posts ensure it fits nearly any kayak whether you're using gear tracks or the included through-hull hardware.

This article is the structured summary of the full Cajo Quad Rail Series Assembly Manual. Download the printable PDF below.

Features

T-bolt compatible gear tracks on all 4 sides
Available in 12", 26", 32", and 44" (2-pack) lengths
Mount parallel to the gunwale or across the hull
3" height keeps gear elevated and secure
Built-in ruler for quick measurements
Adjustable mounting posts for maximum compatibility
Doubles as sturdy handrails for added control and safety
26" and 32" ideal for captain's bridge or dashboard builds
44" 2-pack gives full-length mounting flexibility

What ships in the box

Major components:

Quad Rail (1) — the aluminum extrusion
Mounting posts (2) ×2

Hardware kit:

A — Track nuts ×4
B — M6×22 bolts ×4 (plus 1 Allen key)
C — Backing plates ×2
D — M6 nuts ×2
F — Combination wrench

Assembly walkthrough (3 steps)

Step 1 — Partially tighten the mounting posts

Partially tighten the mounting posts to the Quad Rail using the provided bolt (part B) and track nut (part A). Keep it loose enough to slide the brackets along the track to your ideal position.

Step 2 — Adjust position and slide

Adjust the mounting posts to your ideal position before tightening.

Step 3 — Mount to hull

Two installation cases — pick yours.

Case 1: Mounting to existing T-slot gear tracks Mount the support brackets to the T-slot gear track using the provided bolt (part B) and track nut (part A). After mounting the support brackets to the gear track, fully tighten the top of the support bracket to the Quad Rail.

Note: Some Cajo kayaks include brass inserts for Quad Rail mounting. If your kayak has these inserts, use only the mounting bolt (Part B) to fasten the bracket directly to the hull — no track nut required.

Case 2: Through-hull mounting

After determining your mounting location, drill a hole through the hull using an M6 drill bit.
Use the provided backing plate (part C) to reinforce your Quad Rail installation.
Insert the bolt (part B) through the mounting bracket and the hull.
Place the backing plate inside the hull and secure it with the mounting nut (part D).
Use silicone sealant for waterproofing.

Picking the right length

12" — single-accessory mounts (rod holder, camera arm, fish finder)
26" — captain's bridge for cockpit-level instruments
32" — extended dashboard for multi-instrument or wider builds
44" (2-pack) — full-length parallel rails for maximum coverage

See Quad Rails: picking lengths and accessories for the full sizing guide and brand compatibility notes.

Download the full PDF

The Cajo Quad Rail Assembly Manual PDF contains all 3-step illustrated diagrams and the through-hull installation drawing.

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