Would it be possible to adjust it 2ft (From 6 to 8) when it is holding some weight? ( We need something to help us lift small trees)

Yes, but If you want to lift a load you should look at the Light Duty Steel Lifting Shores. These lifting shores have a patented nut assembly with thrust bearings that increases the lifting capacity up to 10x over the standard shores.

On the STL-13 (the 13" - 17") how much lift is generated by a half turn of the big wing nut?

On all the Ellis Steel Shores 1 turn results in about 1" of height adjustment. 1/2 turn would be about .5" of height adjustment.

What gauge steel are the beams?

The orange body pipe is 2" schedule 40 steel.

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Ellis Manufacturing Light-Duty Steel Construction Jack Post - Adjustable Screw Jack Lift for Floor Leveling, Beams & Concrete - 18,000 lb Capacity, 19"-27" Range, House Jack for Support & Leveling

Ellis Manufacturing Light-Duty Steel Construction Jack Post - Adjustable Screw Jack Lift for Floor Leveling, Beams & Concrete - 18,000 lb Capacity, 19"-27" Range, House Jack for Support & Leveling

Product ID: 149844076

Details

Brand
ELLIS
Load Capacity
20000 Pounds
Material
High Carbon
Maximum Lifting Height
27 Inches
Vehicle Service Type
Car

📏19"-27" adjustable range

🔩Patented thrust bearing tech

⚙️18,000 lb load capacity

644972CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate your project with power and precision — don’t settle for less!

BUILT TO LAST - Constructed from high-strength steel with a 3/8" thick top plate for superior durability.
TRUSTED LEGACY - Ellis Manufacturing—industry leader since 1951, trusted by pros for long-term projects.
HEAVY DUTY STRENGTH - Supports up to 18,000 lbs with a 2.5/1 safety factor for unmatched reliability.
INNOVATIVE EFFICIENCY - Patented thrust bearings and lifting nut assembly boost lifting power up to 10x.
PRECISION HEIGHT CONTROL - Adjustable 19"-27" range lets you level floors and beams with surgical accuracy.

The Ellis Manufacturing Light-Duty Steel Construction Jack Post is a robust, adjustable screw jack designed for professional-grade floor leveling, beam support, and concrete reinforcement. With an 18,000 lb load capacity, a 19"-27" adjustable range, and patented thrust bearing technology, it delivers precise, reliable lifting power. Built from high-strength steel and backed by over 70 years of industry trust, this jack post is engineered for both residential and commercial heavy-duty applications.

Specifications

ASIN	B009RRAW50
Best Sellers Rank	#106,276 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #149 in Industrial Floor Jacks
Brand Name	ELLIS
Color	Orange
Compatible with Vehicle Type	Car
Customer Reviews	4.7 4.7 out of 5 stars (118)
Item Dimensions	6 x 8.75 x 19 inches
Item Weight	21 Pounds
Load Capacity	20000 Pounds
Manufacturer	ELLIS
Manufacturer Part Number	STL-19
Material Type	High Carbon Steel
Maximum Lifting Height	27 Inches
Minimum Height	19 Inches
Style Name	Adjustable
Unit Count	1.0 Count

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

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2 weeks ago

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