Allowable shear values with web holes vhole can be calculated based on the. Bci and ajs ijoists, and versalam rimboards boise cascade wood products, llc, 1111 west jefferson street, ste 300, boise, id 83702 208 3846161. Bc calc performs engineering analysis to help our customers size beams, joists, columns, studs and tall walls for their building projects. For i joists, we combine laminated veneer lumber lvl lp solidstart i joists have been evaluated by ccmc for or fingerjointed sawn lumber flanges with a web of oriented strand board osb to produce an ishaped structural member.
Bci joists are specially constructed ijoists with flanges made from strong versalam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives, providing outstanding strength and durability. Notching should be avoided when possible, and holes bored in beams and joists create the same problems as notches. Bci rim joist, rim board or bci blocking panel to support. Bci joists are specially constructed ijoists with flanges made from versalam laminated veneer lumber and a revolutionary flange profile which provides outstanding strength and durability. These joists are designed to provide our customers with premium quality, high performance floor and roof systems that are priced competitively with traditional construction materials. With strong laminated veneer lumber lvl flanges and highgrade oriented strand board osb webs, bci joists from boise cascade provide consistent quality. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. Send us your plans today for a competitive quotation or click here to view the bci joist enquiry form. Bci joists can be used to create open roof voids in buildings by acting as freespanning rafters between a ridge beam at the roof apex and the wallplate at eaves level. The alljoist series ajs ijoists have solidsawn flanges made largely from black spruce, proven web stock and approved structural adhesives.
Bci joists i joist span i joist span table i joist. Bci joists are specially constructed floor ijoists with flanges made from strong versalam lvl. Our bci joists form part of the simple framing system which includes other engineered wood products such as versalam lvl beams, glulam beams and lsl rim boards. The most recognizable product is their alljoist series i joists which are made largely from black spruce, proven web stock and approved structural adhesives. They are lightweight, easy to cut, and can be installed using standard construction tools. The evolution of engineered wood ijoists building and. Occasionally, concerns arise about notches or holes cut in trus joist tj products used in continuously supported applications such as rim board although rim board is generally not required to span a distance while supporting the vertical load like joists and beam members, it is a critical structural component. Table assumes joists are uniformly loaded by floor loading of 1. Some manufacturers produce ijoists with large holes up to 20 inches already in. Lp solidstart ijoists technical guide for residential.
Accommodates holes for larger services if necessary in accordance. If more than one hole is to be cut, the length of uncut web between holes must be twice the longest dimension of the largest adjacent hole. Silent floor joists come with precut knockout holes, and additional holes for ductwork can be cut at the job site. Where and how to drill joists for electrical cables or. Bci joists bci joists are specially constructed ijoists with flanges made from versalam laminated veneer lumber and a revolutionary flange profile which provides outstanding strength and durability. These joists are consistent from piece to piece, are lighter in weight and stronger than conventional lumber, easier to handle, and faster to install. Holes may be positioned vertically anywhere in the web. Firerated assemblies prs201 boise cascade wood products, llc. Bci joist suppliers involved in roof applications assume a role similar to that of the trussed rafter designer, as outlined in bs52683.
Shop menards for a wide selection of i joists that are lightweight, strong, stable and can be used as floor joists. Engineered for use in roof and floor construction, lightweight bci joists are available in long lengths. Bci joists hole location and sizing engineered timber. How to drill through floor joists the family handyman. Bci joists are specially constructed ijoists with flanges made from strong. The benefit of the boise glulam beams is the flexibility of the product. Boise cascade wood products, llc revised april 9, 2020 products. Tjm has developed a timberstrandflange product tji pro 120 ts with. Boise glulam beam products are manufactured with exteriorgrade or wetuse adhesives that comply with all recognized standards. Bci joists light in weight, but heavyduty, bci joists have a better strength weight ratio than dimension lumber. For years engineered ijoists have been pricey framing options in highend custom homes. For simple span 5 minimum uniformly loaded joists meeting the requirements of this guide, one maximum size round hole. Bci joist span and size charts available for download. Boise cascade premanufactured floor joists professional.
To determine the joist length, deduct the thickness of the rim joists that will be nailed across the ends. Will these silent floor joists, when under attack by. Bci joists in western united states are manufactured in white city, oregon. Drill holes with a diameter of no more than onethird the depth of the joist, staying 2 in. Our current series feature wider flanges which make them even easier to work with on the jobsite because of their. Yes, holes can be cut in ijoists to accommodate wires and piping. Ijoists are produced under strict quality control, so that natural imperfections that are found in natural timbers are noneexistant. Holes may be located vertically anywhere within the web.
A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members. Accommodates holes for larger services if necessary in accordance with guidelines detailed in. Accommodates holes for larger services if necessary in accordance with guidelines detailed in this technical guide. For more information regarding this product, click on the links below. Silent floor joists are designed for easy handling and fast installation.
The dimensional stability of tji joists help them resist warping, twisting and shrinking that can lead to squeaky floors. Notches in the top or bottom of joists shall not exceed onesixth the depth and shall not be located in the middle third of the span. They can be installed quickly and are superior to ordinary wood. Manufactured with either lvl or highgrade lumber flanges and an enhanced osb web, bli joists are strong, lightweight, consistent and costeffective. Knockouts can be removed for crossventilation and wiring. You can cut bigger holes in the webs, but the subtrades just dont mark down. Neither hole overlapped the inside face of the bearing, all holes were in the web and the flanges are intact. Bci joists are manufactured with 38mm round prestamped knockouts in the web at approx. As moisture evaporates from ordinary lumber, nails can pop and squeak resulting in costly callbacks and repairs. Bci joists are specially constructed i joists with flanges made from versalam laminated veneer lumber and a revolutionary flange profile which provides outstanding strength and durability. Bore holes in structural dimension lumber ceiling joists, rafters, and beams not more than. Many people know ijoists by their more common names. Uniform loads only cantilever length i section samples from. Tji joists are lightweight and come in long lengths, which makes them faster and easier to install than traditional framing, and saves you both.
Design equation to calculate shear strength of a bci joist with a circular hole. Improperly sized or placed holes and notches weaken the joist, make it. A hole up to 1 12 inches in diameter can be drilled anywhere in the web of a bci joist, as long as it is. Ceiling joist and rafter boring and notching home owners. The webs allow plumbing and wiring to pass through without.
Our lead times on ijoists vary depending on the size of the job and the order book. This is the first in a series of several articles documenting the building of a studframe house from start to finish by an amateur ownerbuilder, using the payasyougo and learnasyougo process. Shop menards for a wide selection of ijoists that are lightweight, strong, stable and can be used as floor joists. You can bore relatively large holes through i joists to run refrigerant lines, pipes and ducts.
An engineered wood joist, more commonly known as an ijoist, is a product designed to. Plumbing and floor framing drilling holes in truss joist. The advantage of this is that each bci joist corresponds to a particular location within the placement diagram. These same features also make them a popular choice for roof. To download our versalam span and size chart pdfs, click on the links below. Bci series ijoists apa the engineered wood association. Articles books false color exhibit concept to construction exhibit.
Tji 110, 210, 230, 360, and 560 joist specifiers guide. Holes bored in joists shall not be within 2 inches 51 mm of the top or bottom of the joist, and the diameter of any such hole shall not exceed onethird the depth of the joist. It is simple to use, yet flexible enough to analyze a variety of common applications. Knockouts are located in web at approximately 12 oncenter. These along with excellent environmental credentials make ijoists the product of choice for many specifiers and end users. Quality and value are hallmarks of oncenter bli joists. Ceilings framed with bci joists the consistent size of bci joists helps keep gypsum board flat and free of unsightly nail pops and ugly shadows, while keeping. When incorporated into a floor framing system, joists serve to provide stiffness to the subfloor sheathing, allowing it to function as a horizontal diaphragm.
How to cut holes in floor joists for romex home guides sf. Nail through the bci joist and backer into the 2xwith 2 rows 10d nails at 6 o. Where you can drill holes and cut notches in structural floor framing joist duration. Trus joist tji joists are a key part of making a highperformance floor. Kuiken brothers is the largest stocking dealer of boise cascade engineered wood products in the greater tristate area. Holes and notches in tji joist and structural composite. Holes allowed in web, wiring, hvac, plumbing and other large holes can be. Design equation to calculate shear strength of a bci joist with a circular hole in its web vcirc 0. One plus to using this style cable is that a smaller hole is required to allow the cable to run through the floor joists and wall studs of your home. The joists are shaped like an i and are lightweight, but strong. The user enters the member geometry, adds loads, holes and other relevant data and then selects a product for analysis. Wood backer 3 times cantilever length i 112 times cantilever lengthbcljoist blocking.
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