Twice the thickness, and a shadow line to match
Hardie® Artisan® Siding is James Hardie's thickest siding board: 5/8 in. (16 mm), twice the depth of Hardie® Plank, for a deep shadow line. Ontario gets the Lock Joint system in three profiles, Square Channel and Shiplap at 10 1/4 in. (9 in. exposure) and V-Groove at 8 1/4 in. (7 in. exposure), all 12 ft. long and primed for paint. Listed in CCMC Evaluation Report 12678-R, which requires a drained and vented air space of at least 10 mm behind it.
Hardie® Artisan® Siding is James Hardie's thickest siding board: 5/8 in. (16 mm), twice the depth of Hardie® Plank, for a deep shadow line. Ontario gets the Lock Joint system in three profiles, Square Channel and Shiplap at 10 1/4 in. (9 in. exposure) and V-Groove at 8 1/4 in. (7 in. exposure), all 12 ft. long and primed for paint. Listed in CCMC Evaluation Report 12678-R, which requires a drained and vented air space of at least 10 mm behind it.
Hardie Artisan is the thick one. Where Hardie Plank is 5/16 inch, an Artisan board is 5/8 inch, twice the depth, and that extra material is what gives the wall its deep, crisp shadow line. James Hardie's catalogue also notes that outside corners can be mitred on site. In Ontario it comes as the Lock Joint system in three flat wall profiles: Square Channel and Shiplap in a 10 1/4 inch board with a 9 inch exposure, and V-Groove in an 8 1/4 inch board with a 7 inch exposure. The name describes the reveal each board leaves between courses, a square cut channel, a stepped shiplap, or a V. Every board is 12 feet long and ships primed, so the colour is whatever you paint it, in 100% acrylic within 180 days of installation.
The Lock Joint is the practical part. Each board has a tongue and groove along its long edges and stacks onto the course below, so there is no starter strip, no lap gauge, and one installer can set a board alone. James Hardie's instructions have butt joints either caulked or cut back and flashed, set at least 50 mm off a stud, although CCMC 12678-R says Lock Joint joints butt over studs, so settle that with your building official. Artisan with Lock Joint is listed in CCMC Evaluation Report 12678-R, and the report is specific about one condition: the system has only been validated over a drained and vented air space at least 10 mm deep, so plan the wall with furring behind it. James Hardie's own Canadian instructions allow direct fastening to 7/16 inch sheathing on single family work, but where the two differ, the CCMC conditions are what a building official will hold you to.
Available at Pro Materials in Newmarket, Ontario, supplying contractors, builders, and homeowners across York Region, the GTA, Simcoe County and Durham Region. All products are available on a quote basis; contact us for wholesale pricing and current availability.
Smooth primed board. The lock joint leaves a square cut recessed channel between courses, the most architectural of the three reveals.
| Length | 12 ft. (3,660 mm) |
| Height / Width | 10 1/4 in. (260 mm), 9 in. exposure |
| Thickness | 5/8 in. (16 mm) |
| Panels/Box | 12 planks per square |
| Coverage | 1 square = 100 sq. ft. (9.29 m²) |
| Finish | Primed for paint |
| Texture code | TX36 |
Smooth primed board with a V-shaped groove at each course, a traditional tongue and groove look at a narrower 7 in. exposure.
| Length | 12 ft. (3,660 mm) |
| Height / Width | 8 1/4 in. (209 mm), 7 in. exposure |
| Thickness | 5/8 in. (16 mm) |
| Panels/Box | 15 planks per square |
| Coverage | 1 square = 100 sq. ft. (9.29 m²) |
| Finish | Primed for paint |
| Texture code | TX42 |
Smooth primed board with a stepped, rabbeted reveal between courses, the clean shiplap line at a full 9 in. exposure.
| Length | 12 ft. (3,660 mm) |
| Height / Width | 10 1/4 in. (260 mm), 9 in. exposure |
| Thickness | 5/8 in. (16 mm) |
| Panels/Box | 12 planks per square |
| Coverage | 1 square = 100 sq. ft. (9.29 m²) |
| Finish | Primed for paint |
| Texture code | TX44 |
| Wall area | 7 in. exposure (V-Groove) | 9 in. exposure (Square Channel, Shiplap) |
|---|---|---|
| 1 square (100 sq. ft.) | 15 | 12 |
| 5 squares | 75 | 59 |
| 10 squares | 150 | 117 |
| 15 squares | 225 | 175 |
| 20 squares | 300 | 234 |
From the coverage chart in James Hardie's Canadian Lock Joint instructions (RS19406). Deduct openings first.
| Assembly | Fastener | Q50, building under 12 m |
|---|---|---|
| 2x4 S-P-F at 406 mm + 1x4 furring | #8 screw, 32 mm, blind | < 1.00 kPa |
| 2x4 S-P-F at 610 mm + 1x4 furring | #8 screw, 32 mm, blind | < 0.85 kPa |
Only the 260 mm (10 1/4 in.) boards were tested. Buildings above 12 m are Part 4 and need an engineer.
| Item | What it is for |
|---|---|
| Hardie® Artisan® Trim | 1 1/2 in. thick primed trim, 3 1/2 and 5 1/2 in. wide |
| Wood furring | Forms the drained and vented air space of at least 10 mm the CCMC report requires (CCMC tested 1x4 wood furring). Steel hat channel only where James Hardie's multi-family vertical details call for it |
| Joint flashing | Behind butt joints where the locking lip is cut back |
| Z-flashing and kickout flashing | Horizontal breaks, floor lines and roof to wall |
| HardieBlade® saw blade | Fibre cement blade for a circular saw with dust collection |
| Elastomeric sealant | ASTM C920 Grade NS Class 25 or higher, for butt joints (Option A) |
Order quantities and lead times may vary. Contact us for availability.
Vertical wall applications only, plus soffit. Do not use Artisan® as fascia or trim
Framing: wood or steel studs from 20 ga to 16 ga at a maximum 610 mm (24 in.) o.c.
CCMC 12678-R: Lock Joint is validated only when installed over a drained and vented air space not less than 10 mm deep
Multi-family (James Hardie Table 1, RS19407): a rainscreen at every height without a 305 mm (12 in.) eave overhang. With the overhang, a rainscreen from three storeys up when flat wall products exceed 30% of the wall; otherwise a drainable WRB for storeys 3 to 4 and a rainscreen from five storeys up
No starter strip and no lap gauge. Level the first course, then stack each board onto the lock joint below
Blind nail 25 mm (1 in.) down from the top edge, or face nail 50 mm (2 in.) up from the bottom edge, and no fastener within 50 mm (2 in.) of a board end
James Hardie's instructions keep butt joints at least 50 mm (2 in.) off a stud, either caulked, or with at least 75 mm (3 in.) of the locking lip cut back on both boards over joint flashing. CCMC 12678-R says Lock Joint joints butt over studs, so confirm with your building official
Positive slope Z-flashing at horizontal joints, with a 6 mm (1/4 in.) gap above it that is never caulked
Clearances: 203 mm (8 in.) to grade, 50 mm (2 in.) to roofing, decks, paths and steps, 25 mm (1 in.) to gutters
Vertical installation: do not bridge floors, no horizontal butt joints, and a continuous bead of sealant along each board underlap
Maximum mean roof height 25.9 m (85 ft.)
CCMC 12678-R's opinion covers the uncoated board. Primed and ColorPlus® coatings follow James Hardie's own recommendations
Fasteners must be corrosion resistant. Hot-dipped galvanized is recommended, and stainless steel near the ocean, large bodies of water or in very humid conditions
Drive fasteners perpendicular and snug. Do not over drive, under drive or angle them, and do not use aluminum fasteners, staples to the wall, or clipped head nails
James Hardie's installation videos are filmed for the United States. Where a video and the Canadian HZ5® instructions differ, the Canadian instructions govern
How to set up a proper cut station for fibre cement (James Hardie)
Siding at vertical intersections with masonry (James Hardie)
How to install James Hardie siding at brick sills (James Hardie)
Each one opens the section of our guides that answers it for Hardie® Artisan® Siding and the products beside it on the shelf.
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