Hole Diameters:

Before drilling any holes, decide on cable size, termination fittings, and if you are using grommets for your holes.

Termination fittings and grommets are very important, as they will determine the diameter of the holes in your posts.

Other factors to consider that affect hole size involve the constructions of the cable assemblies.

• Are you swaging both ends of the cables?
• Are you using a pull lock/quick connect on one end and swaging the other end?

All these factors together will decide the diameter of the holes.

Confirm the hardware and the hole sizes with the architect, customer, and the owner of the property once the diameter of the cable and fittings have been determined.

Note: If using termination fittings that connect from the outside of the termination post, confirm the hole size on the inside of the termination posts. This can make a difference to the architect or owner.

Clearance:

If you will be using termination fittings that connect from the outside of the termination post, (pass through the termination post), you will need enough clearance to install the termination fitting.

You will want to pay specific attention to instances when the termination posts are up against a wall or another post.

We recommend 3-1/2″ of clearance to allow the installation of hardware and tools to tension the cables.

Posts:

We recommend using 2″x2″ square tube with a ¼” wall for the termination posts; and a 2″x1″ for the top rail.

For pipe rail construction, we recommend schedule 80 pipe for both the termination posts and top rail.

Termination posts will need to be able to support 400 lbs. of tension per cable. If not, the termination post will deflect inwards under the tension of the cables.

We recommend intermediate posts being spaced every 48″ inches.

Cable spacing for the holes for cable rail:

We recommend 3-1/8″ inches apart.

Requirements are that a 4″ sphere shall not pass through any portion of the railing.

We do not recommend Flat Bars.

We do not recommend 90 degree turns.

We recommend double posts at the corners.

When terminating into the same corner post, the cables will need to be offset, unless terminating to the inside of the termination post.

Stairs:

If the cables run at an angle, all holes need to be drilled at an angle. Beveled washers are required for termination fittings connecting to the outside of the post.

If connecting to the inside of the termination post, you will need hardware that will mount to the inside of the posts and will compensate for the angle. We provide this type of hardware.

We recommend using a 1″x19″ construction type 316 stainless steel cable for cable rail.

We offer import, domestic, and domestic melt Material. If you have a project that requires domestic components, confirm if it is domestic or domestic melt. This could make a difference on your project.

Domestic: Products are made in the USA.
Domestic Melt: The raw materials to fabricate the products are sourced in the USA.