Item Brochure

101
Lufkin
Red End
®
Plumber’s Folding Wood Rule
Cat. UPC Blade Size Pack Wt. Shelf
No. No. Packed Width Length lb kg Pack
626L 037103453433 Boxed 5/8” 6’ 2.2 1.00 6
• Used for working with 45° elbows to eliminate figuring and
chance of error
• Graduated one side, in black, inches to 1/16ths both edges
• Other side in red, 45° scale inches to 1/16ths upper edge only
• Turning rule from black to red gives the corresponding
45° elbow measurement
• Example: Sketch at right shows 10” 45° offset; by turning
rule at 10” graduation on standard
inch side red graduation directly
opposite indicates center-to-center
fittings to be 14 1/8” Actual pipe length
varies as allowances must be made for
type of pipe and fitting used. All other
size offsets are calculated in same
manner. Where offset is longer than
length of rule, add 45° scale
measurement of extra distance to
last scale on rule (101-13/16).
Allowance to be
made according
to fitting used
10” Offset Measurement
14
1
/8” 45” Measurement
Red End
®
Brick Mason’s Folding Wood Rule
Cat. UPC Blade Size Pack Wt. Shelf
No. No. Packed Width Length lb kg Pack
636 037103453440 Boxed 5/8” 6’ 2.27 1.03 6
656 037103441218 Boxed 5/8” 6’ 2.27 1.03 6
• Used by bricklayers
• Graduated vertical inches to 1/16ths, both edges
• Brick Mason’s scale on inside, red course counters
numbered consecutively
• Regular outside markings in black
• Using the Lufkin
®
“Red End” 636 Brick Mason’s Rule is
easy and fast. For instructions on the 656, see below.
• To take a measurement when mortar thickness is known:
As an example, assume mortar thickness is 1/2” and
the average thickness of brick is 2 1/4”. Added they
would give a 2 3/4” course. Simply place your thumbnail
on the edge of the rule at 2 3/4”, turn over to the
other side, and your thumbnail will be on the scale 6 mark.
This is the correct scale to use under the above conditions.
The illustration at left shows how easy it is to check the
wall as it is being laid. Correct readings from the top edge
of bricks are at scale 6. This rule speeds up correct scaling
when an open space is to be bricked. There is but one
simple operation when only space is known. Just measure
the space with the scale side of the rule to the closest
scale mark. This will give you the correct scale to use. For
instance, assume that a space 37” is to be bricked.
Using the Brick Mason’s scale side of the rule to measure,
the 37” figure falls between scale 4 and scale 8.
Checking both these scales, by the previously described
thumbnail method, at the starting end of the rule, it is found
that scale 4 is equal to 2 5/8” and scale 8 is equal to
2 7/8”. If the brick to be used averages 2 1/2”, scale
4 would allow 1/8” joint and scale 8 a 3/8” joint. The
more satisfactory of these two size joint thicknesses can
be selected for the job. The brick industry is using more
and more oversize brick (also referred to as “queen” or
“king size” brick). The estimates are about 40% of the brick
sold is oversize. These bricks have a height of 2 3/4” vs. 2
1/4” for the standard or modular brick. Due to the number
of requests from brick masons, we now offer the new #656
brick mason wood rule. The #656 rule has brick spacings at
2 7/8ths and go to 3 1/2” in 1/16” increments. The brick
spacings will be identified by black letters A through K.
Letters are used to prevent confusion with spacings shown
on #636. The #656 rule is painted yellow compared to
white for the #636.
FOLDING
WOOD RULES