The advantage of this is that each bci joist corresponds to a particular location within the placement diagram. Bci joists i joist span i joist span table i joist. 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. Knockouts can be removed for crossventilation and wiring. Boise cascade wood products, llc revised april 9, 2020 products. Articles books false color exhibit concept to construction exhibit. Design equation to calculate shear strength of a bci joist with a circular hole. Tjm has developed a timberstrandflange product tji pro 120 ts with. Shop menards for a wide selection of i joists 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 ijoist is an engineered wood joist, designed to eliminate the problems that occur when using traditional timber joists. 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. Holes may be located vertically anywhere within the web. 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 can be installed quickly and are superior to ordinary wood. Accommodates holes for larger services if necessary in accordance. Bci joists are specially constructed floor ijoists with flanges made from strong versalam lvl. Bci joists light in weight, but heavyduty, bci joists have a better strength weight ratio than dimension lumber. Neither hole overlapped the inside face of the bearing, all holes were in the web and the flanges are intact. 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. Our lead times on ijoists vary depending on the size of the job and the order book. Kuiken brothers is the largest stocking dealer of boise cascade engineered wood products in the greater tristate area. To determine the joist length, deduct the thickness of the rim joists that will be nailed across the ends. Bore holes in structural dimension lumber ceiling joists, rafters, and beams not more than. The user enters the member geometry, adds loads, holes and other relevant data.
Accommodates holes for larger services if necessary in accordance with guidelines detailed in this technical guide. 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. Will these silent floor joists, when under attack by. Lp solidstart ijoists technical guide for residential. Holes may be positioned vertically anywhere in the web. Many people know ijoists by their more common names. An engineered wood joist, more commonly known as an ijoist, is a product designed to. Send us your plans today for a competitive quotation or click here to view the bci joist enquiry form. 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. For more information regarding this product, click on the links below. As moisture evaporates from ordinary lumber, nails can pop and squeak resulting in costly callbacks and repairs. Plumbing and floor framing drilling holes in truss joist. 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. 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 in western united states are manufactured in white city, oregon. 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. Improperly sized or placed holes and notches weaken the joist, make it. The alljoist series ajs ijoists have solidsawn flanges made largely from black spruce, proven web stock and approved structural adhesives. For simple span 5 minimum uniformly loaded joists meeting the requirements of this guide, one maximum size round hole. The joists are shaped like an i and are lightweight, but strong. How to cut holes in floor joists for romex home guides sf. These along with excellent environmental credentials make ijoists the product of choice for many specifiers and end users. 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. Trus joist tji joists are a key part of making a highperformance floor. Learn how to maintain floor strength when you have to cut or drill joists for ducts, pipes. Nail through the bci joist and backer into the 2xwith 2 rows 10d nails at 6 o. Table assumes joists are uniformly loaded by floor loading of 1.
Bci joists hole location and sizing engineered timber. Allowable shear values with web holes vhole can be calculated based on the. Oct 27, 2018 bci joists i joist span table chart bci joists i joist span table chart bci joist hole chart jofac appscounab co a technical guide for floor roof framing construction pdf free. Our current series feature wider flanges which make them even easier to work with on the jobsite because of their. Ijoists are produced under strict quality control, so that natural imperfections that are found in natural timbers are noneexistant. Bci joist span and size charts available for download. If you dont use bci joists, but standard 2x12s instead, your rim joists will also be 2x12s. You can cut bigger holes in the webs, but the subtrades just dont mark down. The dimensional stability of tji joists help them resist warping, twisting and shrinking that can lead to squeaky floors. Drill holes with a diameter of no more than onethird the depth of the joist, staying 2 in. Boise glulam beam products are manufactured with exteriorgrade or wetuse adhesives that comply with all recognized standards.
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. Tji 110, 210, 230, 360, and 560 joist specifiers guide. Knockouts are located in web at approximately 12 oncenter. Silent floor joists are designed for easy handling and fast installation. 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. Uniform loads only cantilever length i section samples from. Design equation to calculate shear strength of a bci joist with a circular hole in its web vcirc 0. Yes, holes can be cut in ijoists to accommodate wires and piping. Accommodates holes for larger services if necessary in accordance with guidelines detailed in. How to drill through floor joists the family handyman. Bci joist suppliers involved in roof applications assume a role similar to that of the trussed rafter designer, as outlined in bs52683.
Bci rim joist, rim board or bci blocking panel to support. Make sure that you watch as many of our videos as possible and. These same features also make them a popular choice for roof. Bci joists are specially constructed ijoists with flanges made from strong. Wood backer 3 times cantilever length i 112 times cantilever lengthbcljoist blocking. Connection per design professional of records specification for shear transfer. Tji joists are lightweight and come in long lengths, which makes them faster and easier to install than traditional framing, and saves you both. 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. 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 user enters the member geometry, adds loads, holes and other relevant data and then selects a product for analysis. Some manufacturers produce ijoists with large holes up to 20 inches already in. When incorporated into a floor framing system, joists serve to provide stiffness to the subfloor sheathing, allowing it to function as a horizontal diaphragm. The webs allow plumbing and wiring to pass through without. For years engineered ijoists have been pricey framing options in highend custom homes.
Bc calc performs engineering analysis to help our customers size beams, joists, columns, studs and tall walls for their building projects. Engineered for use in roof and floor construction, lightweight bci joists are available in long lengths. Bci and ajs ijoists, and versalam rimboards boise cascade wood products, llc, 1111 west jefferson street, ste 300, boise, id 83702 208 3846161. They are lightweight, easy to cut, and can be installed using standard construction tools. 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. Where you can drill holes and cut notches in structural floor framing joist duration. Holes and notches in tji joist and structural composite. The benefit of the boise glulam beams is the flexibility of the product. Bci joists are manufactured with 38mm round prestamped knockouts in the web at approx. Where and how to drill joists for electrical cables or. Bci series ijoists apa the engineered wood association.
Silent floor joists come with precut knockout holes, and additional holes for ductwork can be cut at the job site. Boise cascade premanufactured floor joists professional. Ceiling joist and rafter boring and notching home owners. 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. It is simple to use, yet flexible enough to analyze a variety of common applications. Holes allowed in web, wiring, hvac, plumbing and other large holes can be. Quality and value are hallmarks of oncenter bli joists.
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. Notching should be avoided when possible, and holes bored in beams and joists create the same problems as notches. Manufactured with either lvl or highgrade lumber flanges and an enhanced osb web, bli joists are strong, lightweight, consistent and costeffective. With strong laminated veneer lumber lvl flanges and highgrade oriented strand board osb webs, bci joists from boise cascade provide consistent quality.
Shop menards for a wide selection of ijoists that are lightweight, strong, stable and can be used as floor joists. Firerated assemblies prs201 boise cascade wood products, llc. 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. The evolution of engineered wood ijoists building and. 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. To download our versalam span and size chart pdfs, click on the links below.
959 954 12 293 1173 547 544 1177 559 975 1094 1237 78 1050 497 1401 1057 1407 1226 855 619 469 996 71 531 1180 754 730 372 1165 1232 1140 544 18 1129