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E55S3
An Improved Economical Construction
IMPORTANT ADVANTAGES OVER "METAL LATH" PARTITIONS
1
2
3
4
LOW COST 5
SIMPLICITY AND RAPIDITY OF ERECTION 6
LIGHTNESS 7
SOUND DEADENING QUALITIES 8
TIME, PLASTER AND MONEY SAVED
NO LATH OR RUST STAINS
RIGID, UNIFORM PLASTERING SURFACE
INCOMBUSTIBLE AND FIRE-RESISTING
= UNITED STATES GYPSUM COMPANY :
World's Largest Producers of Gypsum Products
205 WEST MONROE STREET . . CHICAGO
New York - Buffalo - Washington - Cleveland - Detroit - Milwaukee - Minneapolis - Kansas City - Denver - San Francis
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JESTER-SACKETT Partitions in Course of Construction.
Clipping Sackett Plaster Board to Channel Studs by means of
Jester Steel Clips.
JESTER-SACKETT SOLID PARTITION
THE JESTER-SACKETT SYSTEM of solid
incombustible partitions provides a simple,
economical and efficient base for plastering, which
possesses many distinct advantages over the older
systems of metal lath construction.
The system requires no special tools, and can
be erected speedily by any good mechanic.
ECONOMICAL — Costs less than ordinary
channel iron and metal lath construction because
it uses only half as much channel iron; is more
quickly erected; takes less plaster and the
plaster is applied more quickly and in fewer coats.
SPEEDILY ERECTED — Its simplicity en-
ables the ordinary mechanic to erect partitions
much more rapidly than metal lath partitions.
Ordinary % ff Sharon or hot rolled channel iron is
placed 24^4" on centers and solid sheets of
SACKETT Plaster Board, 24" x 36", are locked in
between them. The SACKETT Board is held
securely to the channels by Jester steel clips.
Both sides of this solid surface are plastered with
Gypsum Plaster to the thickness required.
When plastering metal lath partitions it is necessary to brace the partition to put on the first
coat and wait for the scratch coat to dry before browning out. The JESTER-SACKETT System
eliminates this delay. Only two coats are required on each side. You follow up with the finish
coat on either side as soon as base coat has set. This simplifies construction and saves time.
STRENGTH AND RIGIDITY — The rigidity of a metal lath and plaster partition is due
almost entirely to the strength of the plaster and not to the metal lath over which the plaster is
applied. JESTER-SACKETT Partitions, because of the strong, stiff plaster board core, have
greater strength and rigidity than any metal lath and plaster partition of the same thickness.
NO EXPANSION— NO CONTRACTION— As both Sackett and plaster are of Gypsum, the
JESTER-SACKETT System forms a fire-resisting partition that will not expand, contract, warp,
bulge nor buckle.
FIRE RESISTANCE — Exhaustive tests prove that Gypsum is a most effective barrier to
fire. Gypsum is incombustible and has low coefficient of conductivity. This partition, being built
up almost entirely of Gypsum, provides fire resistance and protection equal to any form of 2
solid metal lath and plaster partition.
SOUND DEADENING— The SACKETT Plaster Board, composed of alternate layers
of Gypsum and felt, covered on both sides with Gypsum Plaster, forms a partition superior
in sound-proof qualities to any form
of 2" solid metal lath and plaster partition.
ADVANTAGES— The rapidity with
which the JESTER-SACKETT partmon
is erected, the sound-proof qualities, the
speed in applying the plaster, the econ-
omy of the finished wall — all big vital
advantages — demand the serious consid-
eration of all architects, owners and con-
tractors. Its use means better partitions
than the metal lath and plaster form of
2" solid partitions at LESS COST.
ATTACHING GROUNDS, TRIM,
ETC. — Grounds are attached by wiring
to the steel studs. Grounds coming on
opposite sides of partition may be wired
together. Wood door bucks, of same
width as finished thickness of partition,
are used. These details are similar to
those used with metal lath.
JESTER-SACKETT Partitions ready for Plastering. Sackett Plaster Board
locked into Channel Studs with Jester Steel Clips.
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METHOD OF FIGURING QUANTITIES REQUIRED
In taking off quantities, figure six feet of channel iron to every square yard of wall area.
Actual square feet of SACKETT Plaster Board required will run 5% less than the total area
of the partition.
JESTER-SACKETT clips come in four different shapes (see details below), all used in the
construction. No. 1 is the metal yoke; No. 2, Spring Clip which works with the yoke; No. 3, used
around all openings, also at intersections and joinings with other walls; No. 4, Corner Clip.
To compute the number of Clips to be used in any job — add together the total number of
lineal feet of all vertical corners and multiply by % 9 which will give the total number of No. 4 Clips.
Add together the total number of lineal feet where partitions butt against the walls, corridors
or door bucks and multiply by %, which will give the total number of No. 3 Clips.
The grand total number of clips is 12 clips to the square yard. Subtract from this total number
the sum of the No. 3 and No. 4 clips, and the remainder will be equally divided between No. 1 and
No. 2 clips.
The approximate proportion of clips required for the average job is 36 per cent of No. 1 ; 36 per
cent of No. 2; 25 per cent of No. 3; and 3 per cent of No. 4. When not otherwise specified in order,
clips will be sent in the above proportions, but the contractor should let us know the number of
each clip he desires, if possible.
Face of Part* 'fa on
^Po/ra of dips /o
boarrJ or 6 pairs
To yord .
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Defoil of Foe e
Sfud^
t hU tjq hth.
tVoited to door buck
Corner Clips
3*7 apor t.
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Piaster Face 1
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PI osier Boorci
Piaster Face ^
Cross Section through Wo//,
yJesterSacrxett-2**5of/cf Part/t/on.
Sac/cett Board *5/ze 24*x36".
3 ' #
Studs as shown 24% centers.
Details of JESTER-SACKETT Solid 2" Partition.
i
Pure Calcined
Gypsum
I
Sackett is the only plaster board composed of four sheets
of felt alternating with three layers of gypsum. These
alternate layers give the necessary flexibility; also prevent
too rapid absorption during plastering. The felt has
good tensile strength, does not contract, and the Sackett
and plaster become one solid mass of gypsum. Note the
felt-protected edges, another exclusive Sackett feature.
T * Gypsum ^ ^
I Outside layers of fibrous binding material and I
surfaces for plastering |
Cross Section of "Sackett" magnified 200 diameters, showing
impregnation of felt by gypsum. The long, interwoven
fibres afford the same ideal bond for the plaster as for the
gypsum layer that is interposed during manufacture. One
hundred and forty-five pounds straight pull was required
to separate a 2 /„ " x 3 V panel.
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JESTER-SACKETT Solid Partitions in the course of construction.
The SACKETT Plaster Board is attached to channel studs by means of Jester Steel Clips.
Specifications for Jester-Sackett Solid Partitions.
All partitions shown on plans, except as otherwise noted, are to be of JESTER-SACKETT construction, consisting of
Sackett Plaster Board clipped to %" Sharon or hot rolled channel iron studs. The flanges of the studs shall not exceed
". Channel studs shall be spaced 24? 4 " centers and fastened in a suitable manner to floors and ceilings.
SACKETT Plaster Board ) , " thick, 24" x 36" in size, shall be placed between the channels and clipped to same with
Jester clips, spaced 9" centers, starting 4>£" from floor or ceiling.
CARPENTER CONTRACTORS are to attach, by wiring to the steel studs, M>" grounds for plastering, picture
moulds, base boards and chair rails, where required, and are to set all bucks. Bucks shall be made from 2" x 2" pine,
and properly braced and set.
SPECIFICATIONS FOR PLASTERING
SACKETT Plaster Board must nor he wet before applying plaster. (On solid partitions first apply brown coat on
channel side of partition taking care to fill in behind grounds; then apply brown coat on other side to grounds or thickness
to receive finish coat.) Plaster out to grounds, making all angles and corners flush and straight, ready to receive trim.
Allow plaster on one side of partition to set before plastering other side.
PLASTER— To be United States Gypsum Co.'s Gypsum Cement, Wood Fibre, or Prepared Plaster, mixed and
applied according to manufacturer's directions.
FINISH— To be United States Gypsum Co.'s Prepared Trowel Finish or Sand Float Finish, mixed and applied
according to manufacturer's directions. (Note: If lime putty finish is specified, the best grade of hydrated lime should
be used.)
Estimates on this system, erected in place, ready for plastering will be gladly furnished by
UNITED STATES GYPSUM COMPANY
World's Largest Producers of Gypsum Products
205 WEST MONROE STREET D □ CHICAGO
New York
Buffalo
Minneapolis
Washington
Kansas City
Cleveland
Denver
Detroit
San Francisco
Milwaukee
j. S P. No. )
